Week 41 · 2 Oct – 9 Oct 2026 · 45 items reviewed
All seven exploited items this week are already in CISA KEV
Forty-five items were reviewed this week, seven of them with published exploitation, and all seven are listed in CISA KEV. None of the exploited items touch Microsoft 365; seven other items do, with no exploitation published for them. Five of the exploited items lead the page: ProFTPD, Zammad, ONLYOFFICE Docs, Apache Struts and Citrix NetScaler.
Start here
The 5 the ranking puts first. Exploitation evidence outranks a higher score without it; a Microsoft 365 match outranks everything else.
ProFTPD Improper Access Control Vulnerability
Remote attackers can read and write arbitrary files through the site cpfr and site cpto commands, so authentication holds but the check on what that identity may do does not, and data belonging to other users and to the administrator is in reach.
Upgrade proftpd-dfsg to the fixed version for your Debian release, 1.3.4a-5+deb7u3 on wheezy, 1.3.5-1.1+deb8u1 on jessie and 1.3.5-2 on stretch or sid, or move upstream ProFTPD to maintenance release 1.3.9d, then sample real access records for cross-boundary reads.
Authorization bypass · full reading and sourceIn the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
Patch available
Fixed in:
- 1.3.4a-5+deb7u3 (Debian 7 wheezy, proftpd-dfsg) lists.debian.org
- 1.3.5-1.1+deb8u1 (Debian 8 jessie, proftpd-dfsg) lists.debian.org
- 1.3.5-2 (Debian testing/stretch and unstable/sid, proftpd-dfsg) lists.debian.org
- Upgrade your proftpd-dfsg packages to the fixed version for your Debian release. lists.debian.org
- On Debian 7 (wheezy) install proftpd-dfsg 1.3.4a-5+deb7u3. lists.debian.org
- On Debian 8 (jessie) install proftpd-dfsg 1.3.5-1.1+deb8u1. lists.debian.org
- On Debian testing (stretch) or unstable (sid) install proftpd-dfsg 1.3.5-2. lists.debian.org
- If you run upstream ProFTPD instead of distribution packages, update to the current maintenance release 1.3.9d. www.proftpd.org
Steps extracted by AI from the linked pages; each links to the page that says so. Confirm there before acting.
From CISA KEV:
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: www.proftpd.org
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 11 October 2026.
Where we looked (4)
- www.proftpd.org · vendor advisory · read
- lists.debian.org · vendor advisory · read
- lists.opensuse.org · vendor advisory · blocked us
- nvd.nist.gov · record · not fetched
General notes on authorization bypass, the same for every item of this class:
What this class puts at risk
Authentication worked; the check on what that identity may do did not. Ordinary users reach data and actions belonging to other tenants, other teams, or the administrator.
General practice
Patch, then sample real access records for cross-boundary reads. This class is usually discovered by a customer, not by monitoring.
Publisher text. ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Zammad GmbH Zammad Improper Privilege Management Vulnerability
The local zammad user can escalate to root, and the publisher says this can be chained with CVE-2026-102489, so a foothold in the ticketing service turns into control of the host.
Upgrade to Zammad 7.2.0, upgrade immediately if you still run 6.5 or older because those versions get no security fixes, and treat the issue as unpatched for now while you watch Zammad's GitHub security advisories for a verified fix.
Detail and sourceIn the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
No fix published yet
- Upgrade to Zammad 7.2.0, the current stable release. community.zammad.org
- If you still run Zammad 6.5 or older, upgrade immediately since those versions get no security fixes. community.zammad.org
- Treat this issue as unpatched for now, because the vendor cannot yet confirm its scope or affected versions. community.zammad.org
- Watch Zammad's GitHub security advisories for a verified fix for this CVE. community.zammad.org
Steps extracted by AI from the linked pages; each links to the page that says so. Confirm there before acting.
From CISA KEV:
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 5 October 2026.
Where we looked (6)
- zammad.com · vendor advisory · read
- community.zammad.org · vendor advisory · read
- nvd.nist.gov · record · not fetched
- csirt.divd.nl · third party · needs a browser
- csirt.divd.nl · third party · not fetched
- zammad.com · vendor advisory · read
Publisher text. Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root. This vulnerability can be chained with CVE-2026-102489.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
ONLYOFFICE Docs Server Path Traversal Vulnerability
A /.. sequence in an image upload parameter reaches files outside the intended directory when JWT is used, and the publisher says it could allow remote code execution, so configuration files and private keys are the realistic target.
Patch, rotate every secret stored in a file that process could open, and check whether the same open-source component or library is bundled in other products you run.
Path traversal · full reading and sourceIn the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
No fix found in the pages we could read
From CISA KEV:
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see:
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 11 October 2026.
Where we looked (4)
- github.com · vendor advisory · read
- nvd.nist.gov · record · not fetched
- github.com · third party · read
- github.com · third party · read
General notes on path traversal, the same for every item of this class:
What this class puts at risk
Arbitrary file read outside the intended directory, sometimes write. Nobody traverses a directory to fetch your logo; they go for configuration files and private keys.
General practice
Patch, then rotate every secret stored in a file that process could open.
Publisher text. ONLYOFFICE Docs contains a path traversal vulnerability that can occur when JWT is used, via a /.. sequence in an image upload parameter and could allow for remote code execution. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Apache Struts Command Injection Vulnerability
Anyone who can reach the application can execute arbitrary code as the service account via method:prefix when Dynamic Method Invocation is enabled, and what matters is what that account was quietly allowed to reach.
Upgrade Struts 2 to 2.3.20.3, 2.3.24.3 or 2.3.28.1 after checking whether your version falls in the affected 2.3.20 to 2.3.28 range, disable Dynamic Method Invocation if you cannot upgrade right away, and rotate what the service held.
Command injection · full reading and sourceIn the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
Patch available
Fixed in:
- 2.3.20.3 cwiki.apache.org
- 2.3.24.3 cwiki.apache.org
- 2.3.28.1 cwiki.apache.org
- Upgrade Apache Struts 2 to version 2.3.20.3, 2.3.24.3, or 2.3.28.1. cwiki.apache.org
- If you cannot upgrade right away, disable Dynamic Method Invocation. cwiki.apache.org
- Check whether your Struts version falls in the affected range 2.3.20 through 2.3.28. cwiki.apache.org
- As another workaround, implement your own ActionMapper based on the fixed Struts source code. cwiki.apache.org
- Expect no compatibility problems when moving to the fixed releases. cwiki.apache.org
Steps extracted by AI from the linked pages; each links to the page that says so. Confirm there before acting.
From CISA KEV:
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: cwiki.apache.org
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 11 October 2026.
Where we looked (9)
- cwiki.apache.org · vendor advisory · read
- nvd.nist.gov · record · not fetched
- packetstormsecurity.com · third party · not fetched
- www.oracle.com · patch · read
- www.oracle.com · vendor advisory · read
- www.rapid7.com · third party · not fetched
- www.securityfocus.com · third party · not fetched
- www.securitytracker.com · third party · not fetched
- struts.apache.org · vendor advisory · read
General notes on command injection, the same for every item of this class:
What this class puts at risk
Whoever reaches the service gets a shell as the service account. The vulnerability is rarely the interesting part — what that account was quietly allowed to reach is.
General practice
Patch, then rotate what the service held. Treat those credentials as spent, not merely exposed.
Publisher text. Apache Struts contains a command injection vulnerability that could allow remote attackers to execute arbitrary code via method:prefix when Dynamic Method Invocation is enabled. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
A memory buffer flaw in NetScaler ADC and NetScaler Gateway can be used for denial of service, which puts availability of remote access at risk rather than confidentiality or integrity.
Patch on the normal cycle, unless the service is customer-facing and already running close to its limits.
Denial of service · full reading and sourceIn the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
From CISA KEV:
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 7 October 2026.
Where we looked (3)
- support.citrix.com · vendor advisory · needs a browser
- community.citrix.com · vendor advisory · blocked us
- nvd.nist.gov · record · not fetched
General notes on denial of service, the same for every item of this class:
What this class puts at risk
Availability only, with no confidentiality or integrity implication. Worth saying out loud when it is competing for the same change window as something that leaks data.
General practice
Patch on the normal cycle, unless the service is customer-facing and already running close to its limits.
Publisher text. Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
The pattern
Remote code execution is the week's most common class, at four of the thirteen classified items. The repetition is the useful part. When one class keeps coming back it is usually worth checking whether your own estate has the same shape of exposure, rather than only chasing the named products. Two of the exploited items fit that shape: the Apache Struts command injection, and the ONLYOFFICE Docs path traversal that the publisher says could allow remote code execution.
- 1 of 7 exploited items are access-control failures. Authentication, authorization, or credential handling — not memory safety. These reward an attacker with no skill and no exploit development, which is why they get used quickly.
- 8 CVEs here are reported by a single publisher. Single-source does not mean wrong, it means unconfirmed. Corroboration on this page requires two independent publisher domains naming the same CVE, and most items do not have it yet.
Worth a read
Pieces from the week that are not advisories: managed Microsoft 365 posture, agentic coding, and the occasional essay.
- Post-quantum authentication: Why organizations should start testing certificate ecosystems nowM365 posture
Microsoft makes the case that post-quantum planning has to cover authentication as well as encrypted data, because certificates, trust anchors, PKI services, applications, devices and hardware security modules may all be affected by new algorithms and larger certificate chains.
microsoft.com - The Pulse: new trend of building “internal vibe-coding apps” at tech companiesagentic coding
Ramp and Stripe have built platforms that let non-engineers assemble internal websites and tools, and both are taking off, which is worth understanding before the same pattern turns up in your own organisation.
newsletter.pragmaticengineer.com - How Oracle turns days of work into minutes with ChatGPT and Codexagentic coding
Oracle describes turning specialist knowledge in recruiting, engineering and operations into fast, repeatable workflows with ChatGPT Work and Codex, which is a concrete look at where agentic tooling is actually landing.
openai.com - 'AgentCorruption' Puts AWS Environments At Risk With Single Promptsecurity
A now-patched flaw in AWS Bedrock AgentCore would have let an attacker use one AI chatbot to take over an organisation's entire agent fleet, a useful illustration of blast radius on agent platforms.
darkreading.com - Lawmakers warn Google could expose Spirit Airlines data in $10 million AI training dealsecurity
Lawmakers object to a proposed sale that would include around 100 million emails, 500 million Microsoft Teams messages, employment contracts, timecard records and payroll data in an AI training deal, which is a data governance question for anyone who owns a tenant.
therecord.media
Everything else this week
Triage order, not severity order. Opening an item shows what its class puts at risk, what to do, the publisher text, and the link.
Exploited elsewhere
2ISC BIND Data Processing Errors Vulnerability ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. In CISA KEVOfficial advisory Denial of service · exposure, response and source
In the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
Patch available
Fixed in:
- 9.9.7-P2 web.archive.org
- 9.10.2-P3 web.archive.org
- Upgrade BIND 9 to 9.9.7-P2 or 9.10.2-P3, whichever matches your current branch. web.archive.org
- Do this immediately, as exploit code is already public. web.archive.org
- On Red Hat Enterprise Linux 6 and 7, install the updated bind packages from RHSA-2015:1513. access.redhat.com
- Patch every BIND server you run, both recursive resolvers and authoritative servers. web.archive.org
- Do not rely on ACLs or query-restricting configuration instead of patching, and expect no workaround. web.archive.org
Steps extracted by AI from the linked pages; each links to the page that says so. Confirm there before acting.
From CISA KEV:
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: web.archive.org
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 11 October 2026.
Where we looked (5)
- web.archive.org · vendor advisory · read
- access.redhat.com · vendor advisory · read
- supportportal.juniper.net · vendor advisory · needs a browser
- nvd.nist.gov · record · not fetched
- kb.isc.org · vendor advisory · not found
General notes on denial of service, the same for every item of this class:
What this class puts at risk
Availability only, with no confidentiality or integrity implication. Worth saying out loud when it is competing for the same change window as something that leaks data.
General practice
Patch on the normal cycle, unless the service is customer-facing and already running close to its limits.
Publisher text. ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries. Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Strapi Cleartext Storage of Sensitive Information Vulnerability Strapi contains a cleartext storage of sensitive information vulnerability that could allow attackers with access to the admin panel to discover sensitive user details via the query filter. This vulnerability can be chained with CVE-2023-22621 to achieve remote code execution. Users are advised to discontinue use… In CISA KEVOfficial advisory Remote code execution · exposure, response and source
In the CISA KEV catalogue, so exploitation is not hypothetical. US federal agencies get a binding deadline for these; everyone else gets a strong hint.
Mitigation
Patch available
Fixed in:
- 4.8.0 strapi.io
- Upgrade Strapi to v4.8.0 or later. strapi.io
- Treat any Strapi install at 4.7.1 or below as vulnerable and schedule the upgrade immediately. www.ghostccamm.com
- If you still run Strapi 3.x.x or older, move to a patched 4.x.x release because 3.x gets no security updates. strapi.io
- Check your logs against the published indicators for leaked private user data. www.ghostccamm.com
- Also verify no admin accounts were hijacked, since this flaw can be chained with CVE-2023-22621 for unauthenticated RCE on versions 4.5.5 and below. www.ghostccamm.com
Steps extracted by AI from the linked pages; each links to the page that says so. Confirm there before acting.
From CISA KEV:
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: strapi.io
Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
US federal remediation deadline: 11 October 2026.
Where we looked (4)
- strapi.io · vendor advisory · read
- github.com · vendor advisory · read
- nvd.nist.gov · record · not fetched
- www.ghostccamm.com · third party · read
General notes on remote code execution, the same for every item of this class:
What this class puts at risk
Execution on the affected system. Everything that host can reach, mount, or authenticate to is in scope, which is reliably more than the asset register claims.
General practice
Patch now, then examine the host rather than assuming the patch closed an incident that may already have happened.
Publisher text. Strapi contains a cleartext storage of sensitive information vulnerability that could allow attackers with access to the admin panel to discover sensitive user details via the query filter. This vulnerability can be chained with CVE-2023-22621 to achieve remote code execution. Users are advised to discontinue use and/or transition to a supported version.
Read the original at cisa.gov CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Touches Microsoft 365, no exploitation published
7CVE-2026-96940 Microsoft Exchange Server Elevation of Privilege Vulnerability Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network. ExchangeOfficial advisory2 publishers Privilege escalation · exposure, response and source
Applicable to Exchange. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
Patch available
From Microsoft's update guide (msrc.microsoft.com). Microsoft marks customer action as required.
- KB5129955, fixed build 15.02.2562.053 · Microsoft Exchange Server Subscription Edition RTM
- KB5129958, fixed build 15.01.2507.075 · Microsoft Exchange Server 2016 Cumulative Update 23
- KB5129956, fixed build 15.02.1748.053 · Microsoft Exchange Server 2019 Cumulative Update 15
- KB5129957, fixed build 15.02.1544.048 · Microsoft Exchange Server 2019 Cumulative Update 14
General notes on privilege escalation, the same for every item of this class:
What this class puts at risk
The step between a compromised low-value account and administrative reach. Alone it reads as minor; chained behind any foothold it is the entire incident.
General practice
Patch, then review privileged role assignments and sign-ins for the window before the fix landed. Escalation leaves grants behind it.
Publisher text. Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.
Read the original at msrc.microsoft.com CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system. ExchangeEstablished reporting2 publishers Detail and source
Applicable to Exchange. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
Patch available
From Microsoft's update guide (msrc.microsoft.com). Microsoft marks customer action as required.
- KB5129955, fixed build 15.02.2562.053 · Microsoft Exchange Server Subscription Edition RTM
- KB5129958, fixed build 15.01.2507.075 · Microsoft Exchange Server 2016 Cumulative Update 23
- KB5129956, fixed build 15.02.1748.053 · Microsoft Exchange Server 2019 Cumulative Update 15
- KB5129957, fixed build 15.02.1544.048 · Microsoft Exchange Server 2019 Cumulative Update 14
Publisher text. Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system.
Read the original at thehackernews.com CVE record
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Falcon Data Security for SaaS Secures Sensitive Data in Microsoft 365 Entra IDDefenderIntuneExchangeTeams / SharePointVendor research Detail and source
Applicable to Entra ID, Defender, Intune, Exchange, Teams / SharePoint. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
The source published no mitigation steps with this item, and none were found in the pages we could read (no advisory links were listed for it). Check the linked advisory for fixed versions and workarounds before acting.
Read the original at crowdstrike.com
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
'BigDiskBuster' Leaves Microsoft Defender Running While Blocking Updates Not quite an EDR-killer, but the proof-of-concept cyber technique creates a silent virus detection gap while service runs normally, no exploit required. DefenderEstablished reporting Detail and source
Applicable to Defender. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
The source published no mitigation steps with this item, and none were found in the pages we could read (no advisory links were listed for it). Check the linked advisory for fixed versions and workarounds before acting.
Publisher text. Not quite an EDR-killer, but the proof-of-concept cyber technique creates a silent virus detection gap while service runs normally, no exploit required.
Read the original at darkreading.com
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
U.S. Offers Up to $10 Million for Tips on Zhang Yu, Charged in HAFNIUM Hacks The U.S. State Department is offering up to $10 million for information leading to the identification or location of Zhang Yu, a Chinese national charged in the United States in connection with the 2021 Microsoft Exchange Server attacks known as HAFNIUM. The reward is for information leading to his identification… ExchangeEstablished reporting Detail and source
Applicable to Exchange. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
The source published no mitigation steps with this item, and none were found in the pages we could read (no advisory links were listed for it). Check the linked advisory for fixed versions and workarounds before acting.
Publisher text. The U.S. State Department is offering up to $10 million for information leading to the identification or location of Zhang Yu, a Chinese national charged in the United States in connection with the 2021 Microsoft Exchange Server attacks known as HAFNIUM. The reward is for information leading to his identification or location, the news outlet NTD reported this week, citing a notice
Read the original at thehackernews.com
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Microsoft Teams to get support for third-party deepfake detection tools Microsoft will soon introduce support for third-party deepfake detection solutions and impersonation protection in Teams meetings. [...] Teams / SharePointEstablished reporting Detail and source
Applicable to Teams / SharePoint. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
The source published no mitigation steps with this item, and none were found in the pages we could read (no advisory links were listed for it). Check the linked advisory for fixed versions and workarounds before acting.
Publisher text. Microsoft will soon introduce support for third-party deepfake detection solutions and impersonation protection in Teams meetings. [...]
Read the original at bleepingcomputer.com
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Lawmakers warn Google could expose Spirit Airlines data in $10 million AI training deal The proposed sale would include about 100 million emails, 500 million Microsoft Teams messages, employment contracts, employee and timecard records and payroll and tax information, Rep. Steven Horsford (D-NV) said in a press release. Teams / SharePointEstablished reporting Detail and source
Applicable to Teams / SharePoint. Nobody has published exploitation yet, so this belongs in the next planned change window rather than tonight.
Mitigation
The source published no mitigation steps with this item, and none were found in the pages we could read (no advisory links were listed for it). Check the linked advisory for fixed versions and workarounds before acting.
Publisher text. The proposed sale would include about 100 million emails, 500 million Microsoft Teams messages, employment contracts, employee and timecard records and payroll and tax information, Rep. Steven Horsford (D-NV) said in a press release.
Read the original at therecord.media
Exposure and response are Digest interpretation of the vulnerability class, not claims made by the publisher. Confirm against the source before acting.
Also reviewed this week
31- 10.0SonicWall Patches CVSS 10.0 Pre-Authentication SSRF Flaw in SMA1000 Appliancesthehackernews.com
- 9.8Attackers Target Rejetto HFS Flaw That Enables Admin Session Forgery and RCECVE-2026-61500thehackernews.com
- 9.8Rejetto HFS servers now actively scanned for critical RCE flawCVE-2026-61500bleepingcomputer.com
- 8.8Chromium: CVE-2025-10502 Heap buffer overflow in ANGLECVE-2025-10502msrc.microsoft.com
- 7.5New NetScaler Zero-Day Exploited in Targeted Attacks Can Knock SAML Deployments OfflineCVE-2026-88779thehackernews.com
- 7.0⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arreststhehackernews.com
- 5.0Kiteworks & Citrix Incidents Show Challenges of Zero-Day Responsedarkreading.com
- 5.0Hackers exploit 32 zero-days on first day of Pwn2Own Irelandbleepingcomputer.com
- 5.03 lessons from frontier AI vulnerability researchmicrosoft.com
- 5.0Samsung Galaxy S26 hacked three more times at Pwn2Own Irelandbleepingcomputer.com
- 4.3Chromium: CVE-2025-11215 Off by one error in V8CVE-2025-11215msrc.microsoft.com
- 4.0September sponsors-only newslettersimonwillison.net
- 4.0LibreOffice and OpenOffice Flaws Let Malicious Spreadsheets Run Code Without Macro Warningsthehackernews.com
- 4.0Attackers Target Critical Atlassian Vulnerability Within Hours of PoC Publicationsecurityweek.com
- 3.8The Good, the Bad and the Ugly in Cybersecurity – Week 39 (2026)sentinelone.com
- 3.8Is It Fair to Blame 'Rogue' AI for Security Failures?darkreading.com
- 3.8RemoteThreat Bets Security Teams Need to Test What Happens After Defenses Faildarkreading.com
- 3.8The Credential Layer Is Expanding Faster Than Security Teams Can See Itthehackernews.com
- 3.8Need for Speed: AI-Driven Attacks Are Changing Security Strategiesdarkreading.com
- 3.8Denmark population registry data breach affects 8.8 million peoplebleepingcomputer.com
- 3.8Denmark Says Attackers Accessed CPR Data for 8.8 Million People via Company Accountthehackernews.com
- 3.88.8 Million Impacted by Data Breach at Denmark’s Central Person Registersecurityweek.com
- 3.8CISO perspectives on managing vulnerability risks in the age of AImicrosoft.com
- 3.8IANS' Kakolowski: How AI Is Reshaping CISO Budgets & Security Teamsdarkreading.com
- 3.8Update your IDE to restore agent activity in Copilot usage metricsgithub.blog
- 3.8Anthropic Gives Vetted Defenders Fewer Claude Guardrailsdarkreading.com
- 3.8CrowdStrike and Anthropic Give Critical Infrastructure Defenders the AI Advantagecrowdstrike.com
- 3.8How Technology Empowers—and Imperils—Dictatorsschneier.com
- 3.8Uranium crypto exchange hacker convicted for stealing $53 millionbleepingcomputer.com
- 3.8CVE-2026-69435 Azure SRE Agent Elevation of Privilege Vulnerabilitymsrc.microsoft.com
- 3.8CVE-2026-77900 Azure App Service Remote Code Execution Vulnerabilitymsrc.microsoft.com