Vendor advisories

Security advisories from the vendors you use.

Search new and updated bulletins from Microsoft, Citrix, Cisco, Palo Alto Networks, Fortinet, Ivanti, Delinea, Ubuntu, and AWS. We keep each vendor's advisory ID, affected products, CVEs, severity, dates, and available fix guidance together.

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11Vendor sources

16,785Advisories collected

6,419Published or updated in 30 days

6,988Marked critical or high

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Connected directly to official vendor sources

The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

AWS Security Bulletins 169 advisories

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Apple Security Releases 29 advisories

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Cisco Security Advisories 104 advisories

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Citrix Security Bulletins 24 advisories

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Delinea Security Advisories 14 advisories

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Fortinet PSIRT Advisories 55 advisories

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Ivanti Security Advisories 9 advisories

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Microsoft Security Response Center 15,888 advisories

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Palo Alto Networks Security Advisories 59 advisories

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SonicWall PSIRT Advisories 11 advisories

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Ubuntu Security Notices 423 advisories

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16,785 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

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Microsoft Security Response CenterCVE-2026-97811

Published Oct 13, 2026

HighCVSS 7.8

Microsoft OpenSSH for Windows Elevation of Privilege Vulnerability

Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)

Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761

Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97811

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97810

Published Oct 13, 2026

HighCVSS 7.0

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems

Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650

Vendor guidance

Install KB5127648. Install KB5126646. Install KB5126655. Install KB5127646.

CVE-2026-97810

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97809

Published Oct 13, 2026

HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems

Fixed versions10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.17763.9376

Vendor guidance

Install KB5126653. Install KB5127648. Install KB5126651. Install KB5126657. Install KB5127646.

CVE-2026-97809

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97808

Published Oct 13, 2026

HighCVSS 7.0

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems

Fixed versions10.0.19045.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711

Vendor guidance

Install KB5126657. Install KB5126653. Install KB5127648. Install KB5126651. Install KB5127646.

CVE-2026-97808

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97807

Published Oct 13, 2026

HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems

Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652

Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646.

CVE-2026-97807

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97806

Published Oct 13, 2026

HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652

Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646.

CVE-2026-97806

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97805

Published Oct 13, 2026

HighCVSS 9.8

Windows Partition Management Driver Remote Code Execution Vulnerability

Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376

Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97805

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97804

Published Oct 13, 2026

HighCVSS 7.8

HID Class Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems

Fixed versions10.0.26300.9711, 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127646. Install KB5126655. Install KB5126646.

CVE-2026-97804

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97803

Published Oct 13, 2026

HighCVSS 7.8

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems

Fixed versions10.0.28000.3231

Vendor guidance

Install KB5127646.

CVE-2026-97803

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97801

Published Oct 13, 2026

HighCVSS 7.5

.NET Framework Tampering Vulnerability

Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.

Affected productsMicrosoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2

Fixed versions2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0, 4.8.9363.0, 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.10008.0, 2.0.50727.9188 AND 3.0.30729.9171

Vendor guidance

Install KB5127689. Install KB5127690. Install KB5127691. Install KB5127692. Install KB5127693. Install KB5127694. Install KB5127696. Install KB5127660. Install KB5127664. Install KB5126868. Install KB5127666. Install ...

CVE-2026-97801

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Microsoft Security Response CenterCVE-2026-97799

Published Oct 13, 2026

HighCVSS 7.8

Windows Audio Service Elevation of Privilege Vulnerability

Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.

Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.28000.3231

Vendor guidance

Install KB5127648. Install KB5127646.

CVE-2026-97799

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97794

Published Oct 13, 2026

HighCVSS 7.8

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems

Fixed versions10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711

Vendor guidance

Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97794

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97792

Published Oct 13, 2026

HighCVSS 7.8

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems

Fixed versions10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711

Vendor guidance

Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646.

CVE-2026-97792

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97790

Published Oct 13, 2026

HighCVSS 5.5

Windows Container Isolation FS Filter Driver (unionfs.sys) Tampering Vulnerability

Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems

Fixed versions10.0.20348.5761, 10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711

Vendor guidance

Install KB5126655. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97790

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97789

Published Oct 13, 2026

HighCVSS 7.5

Remote Desktop Client Remote Code Execution Vulnerability

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376

Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97789

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97788

Published Oct 13, 2026

HighCVSS 7.5

Active Directory Federation Services (AD FS) Information Disclosure Vulnerability

Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.

Affected productsWindows 10 Version 1607 for 32-bit Systems, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems

Fixed versions10.0.14393.9612, 6.2.9200.26434, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126868. Install KB5126835. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646. Install KB5126836. Install KB5126651. Install KB5126655. Install KB5126646. Install KB5127689. Install ...

CVE-2026-97788

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97787

Published Oct 13, 2026

HighCVSS 7.0

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems

Fixed versions10.0.20348.5761, 10.0.28000.3231, 10.0.22631.7652, 10.0.26100.9711

Vendor guidance

Install KB5126655. Install KB5127646. Install KB5126653. Install KB5127648. Install KB5126646.

CVE-2026-97787

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97781

Published Oct 13, 2026

HighCVSS 8.8

Microsoft Office OneNote Remote Code Execution Vulnerability

Improper neutralization of special elements used in a command ('command injection') in Microsoft Office OneNote allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems

Fixed versionshttps://aka.ms/OfficeSecurityReleases

Vendor guidance

Release Notes

CVE-2026-97781

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97774

Published Oct 13, 2026

HighCVSS 7.0

Microsoft Office Click-To-Run Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Affected productsMicrosoft 365 Apps for Enterprise for 64-bit Systems, Microsoft 365 Apps for Enterprise for 32-bit Systems

Fixed versionshttps://aka.ms/OfficeSecurityReleases

Vendor guidance

Click to Run

CVE-2026-97774

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97014

Published Oct 13, 2026

HighCVSS 5.5

Microsoft Office Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions

Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056

Vendor guidance

Release Notes

CVE-2026-97014

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97012

Published Oct 13, 2026

HighCVSS 8.8

Microsoft Office Outlook Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions

Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases

Vendor guidance

Release Notes

CVE-2026-97012

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-97009

Published Oct 13, 2026

HighCVSS 7.8

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056

Vendor guidance

Release Notes

CVE-2026-97009

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-96996

Published Oct 13, 2026

HighCVSS 7.8

Microsoft Office Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056

Vendor guidance

Release Notes

CVE-2026-96996

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-96960

Published Oct 13, 2026

HighCVSS 7.5

.NET Denial of Service Vulnerability

Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.

Affected productsSystem.Security.Cryptography.Xml on .NET 10.0 runtime installed on Windows, System.Security.Cryptography.Xml on .NET 10.0 runtime installed on Linux, System.Security.Cryptography.Xml on .NET 10.0 runtime installed on Mac OS, System.Security.Cryptography.Xml on .NET 11.0 runtime installed on Windows

Fixed versions10.0.13, 11.0.0-rc.2, 8.0.5, 9.0.21

Vendor guidance

Release Notes Install KB5127696. Install KB5127660. Install KB5127664. Install KB5126868. Install KB5127666. Install KB5127685. Install KB5127683. Install KB5127687. Install KB5127667. Install KB5127668. Install KB512...

CVE-2026-96960

Read the vendor advisory Watch this product

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Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.

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