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

6,418Published 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

Check delayedChecked 21 days ago

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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-2026-88159

Published Oct 13, 2026

HighCVSS 8.8

Windows Background Intelligent Transfer Service (BITS) Remote Code Execution Vulnerability

Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88159

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88158

Published Oct 13, 2026

HighCVSS 5.5

Microsoft Digest Authentication Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Digest Authentication allows an authorized attacker to disclose information 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88158

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88157

Published Oct 13, 2026

HighCVSS 8.8

Microsoft OpenSSH for Windows Remote Code Execution Vulnerability

Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.

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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88157

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88155

Published Oct 13, 2026

HighCVSS 8.8

Microsoft Office SharePoint Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Affected productsMicrosoft SharePoint Server Subscription Edition

Fixed versions16.0.20326.20190

Vendor guidance

Install KB5002927.

CVE-2026-88155

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88154

Published Oct 13, 2026

HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

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

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, 16.114.26101123

Vendor guidance

Release Notes

CVE-2026-88154

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88153

Published Oct 13, 2026

HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

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

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

Vendor guidance

Release Notes

CVE-2026-88153

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88152

Published Oct 13, 2026

HighCVSS 7.8

Windows Background Intelligent Transfer Service (BITS) Elevation of Privilege Vulnerability

Use after free in Windows Background Intelligent Transfer Service (BITS) 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 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

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

CVE-2026-88152

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88151

Published Oct 13, 2026

HighCVSS 6.5

Microsoft Office Excel Information Disclosure Vulnerability

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

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

Vendor guidance

Release Notes

CVE-2026-88151

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88149

Published Oct 13, 2026

HighCVSS 7.0

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Double free in Windows Ancillary Function Driver for WinSock 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88149

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88146

Published Oct 13, 2026

HighCVSS 7.0

Windows Background Intelligent Transfer Service (BITS) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Background Intelligent Transfer Service (BITS) 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-2026-88146

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88143

Published Oct 13, 2026

HighCVSS 6.7

Windows Storage Spaces Controller Elevation of Privilege Vulnerability

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

Affected productsWindows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation)

Fixed versions10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88143

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88142

Published Oct 13, 2026

HighCVSS 8.8

Windows Background Intelligent Transfer Service (BITS) Remote Code Execution Vulnerability

Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88142

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88141

Published Oct 13, 2026

HighCVSS 7.0

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems

Fixed versions10.0.20348.5761, 10.0.26100.33650, 10.0.26200.9711, 10.0.22631.7652

Vendor guidance

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

CVE-2026-88141

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88140

Published Oct 13, 2026

HighCVSS 5.5

Windows Key Storage Provider Information Disclosure Vulnerability

Out-of-bounds read in Windows Key Storage Provider allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation)

Fixed versions10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88140

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88139

Published Oct 13, 2026

HighCVSS 7.0

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems

Fixed versions10.0.26100.33650, 10.0.26200.9711, 10.0.26100.9711, 10.0.28000.3231

Vendor guidance

Install KB5126646. Install KB5127648. Install KB5127646.

CVE-2026-88139

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88137

Published Oct 13, 2026

HighCVSS 6.5

WebDAV Information Disclosure Vulnerability

Files or directories accessible to external parties in WebDAV allows an authorized attacker to disclose information 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-2026-88137

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88136

Published Oct 13, 2026

HighCVSS 8.8

Web Distributed Authoring and Versioning (WEBDAV) Remote Code Execution Vulnerability

Improper resolution of path equivalence in WebDAV allows an authorized 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-2026-88136

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88135

Published Oct 13, 2026

HighCVSS 7.8

WebDAV Elevation of Privilege Vulnerability

Improper access control in WebDAV 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88135

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88134

Published Oct 13, 2026

HighCVSS 7.8

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

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

CVE-2026-88134

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88133

Published Oct 13, 2026

HighCVSS 7.8

Windows Portable Device Enumerator Service Elevation of Privilege Vulnerability

Improper authorization in Windows Portable Device Enumerator 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 Server 2019, Windows Server 2019 (Server Core installation)

Fixed versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

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

CVE-2026-88133

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88132

Published Oct 13, 2026

HighCVSS 5.9

Azure Key Vault Information Disclosure Vulnerability

Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.

Affected productsazure-keyvault-keys, azure-keyvault-certificates, azure-keyvault-secrets, azure-keyvault-administration

Fixed versions4.10.2, 4.9.2, 4.11.2, 4.8.2

Vendor guidance

Release Notes

CVE-2026-88132

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88130

Published Oct 13, 2026

HighCVSS 6.5

Role: DNS Server Denial of Service Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to deny service 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 KB5126655. Install KB5126646.

CVE-2026-88130

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88129

Published Oct 13, 2026

HighCVSS 6.5

Role: DNS Server Denial of Service Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to deny service 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 KB5126655. Install KB5126646.

CVE-2026-88129

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-88128

Published Oct 13, 2026

HighCVSS 7.8

Windows DWM Core Library Elevation of Privilege Vulnerability

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

Affected productsWindows 11 Version 26H2 for x64-based Systems, Windows 11 Version 26H2 for ARM64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

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

CVE-2026-88128

Read the vendor advisory Watch this product

Before you act

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.

How we check our sources