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.

11Vendor sources
18,986Advisories collected
6,744Published or updated in 30 days
8,727Marked critical or high
Coverage

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.

18,986 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.

RSS for these results
Microsoft Security Response CenterCVE-2026-32083
HighCVSS 7.0

Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service 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, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-32082
HighCVSS 7.0

Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service 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, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-32081
HighCVSS 5.5

Package Catalog Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198.

Microsoft Security Response CenterCVE-2026-32080
HighCVSS 7.0

Windows WalletService Elevation of Privilege Vulnerability

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

Affected productsWindows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation)
Fixed versions10.0.17763.8644, 10.0.20348.5020, 10.0.26100.32690, 10.0.25398.2274
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082063. Install KB5082060. Install KB5082198.

Microsoft Security Response CenterCVE-2026-32079
HighCVSS 5.5

Web Account Manager Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32078
HighCVSS 7.8

Windows Projected File System Elevation of Privilege Vulnerability

Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022 (Server Core installation), Windows Server 2022, Windows Server 2019 (Server Core installation), Windows Server 2019
Fixed versions10.0.20348.5020, 10.0.17763.8644, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082142. Install KB5082123. Install KB5082200. Install KB5082063. Install KB5082052. Install KB5083769. Install KB5082060. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32076
HighCVSS 7.8

Windows Storage Spaces Controller Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Storage Spaces Controller 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 23H2 for ARM64-based Systems
Fixed versions10.0.26100.32690, 10.0.26200.8246, 10.0.22631.6936, 10.0.25398.2274
Vendor guidance

Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32075
HighCVSS 7.0

Windows UPnP Device Host Elevation of Privilege Vulnerability

Use after free in Windows Universal Plug and Play (UPnP) Device Host 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32074
HighCVSS 7.8

Windows Projected File System Elevation of Privilege Vulnerability

Double free in Windows Projected File System 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, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060.

Microsoft Security Response CenterCVE-2026-32073
HighCVSS 7.0

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32072
HighCVSS 6.2

Active Directory Spoofing Vulnerability

Improper authentication in Windows Active Directory allows an unauthorized attacker to perform spoofing 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32071
HighCVSS 7.5

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198.

Microsoft Security Response CenterCVE-2026-32070
HighCVSS 7.0

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Use after free in Windows Common Log File System Driver 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, Windows Server 2022, Windows 10 Version 1809 for 32-bit Systems
Fixed versions10.0.28000.1836, 10.0.20348.5020, 10.0.17763.8644, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082142. Install KB5082123. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082060. Install KB5082052. Install KB5082198. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-32069
HighCVSS 7.8

Windows Projected File System Elevation of Privilege Vulnerability

Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022 (Server Core installation), Windows Server 2022, Windows Server 2019, Windows 10 Version 21H2 for 32-bit Systems
Fixed versions10.0.20348.5020, 10.0.17763.8644, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082142. Install KB5082123. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5083768.

Microsoft Security Response CenterCVE-2026-32068
HighCVSS 7.0

Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service 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, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-27931
HighCVSS 5.5

Windows GDI Information Disclosure Vulnerability

Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184, 10.0.26100.32690
Vendor guidance

Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5083768.

Microsoft Security Response CenterCVE-2026-27930
HighCVSS 5.5

Windows GDI Information Disclosure Vulnerability

Out-of-bounds read in Windows GDI allows an unauthorized 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126. Install KB5083768.

Microsoft Security Response CenterCVE-2026-27929
HighCVSS 7.0

Windows LUA File Virtualization Filter Driver Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows LUAFV 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126. Install KB5083768.

Microsoft Security Response CenterCVE-2026-27928
HighCVSS 8.7

Windows Hello Security Feature Bypass Vulnerability

Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.

Affected productsWindows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation)
Fixed versions10.0.17763.8644, 10.0.20348.5020, 10.0.26100.32690, 10.0.25398.2274
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082063. Install KB5082060. Install KB5082198.

Microsoft Security Response CenterCVE-2026-27927
HighCVSS 7.8

Windows Projected File System Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Projected File System allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022 (Server Core installation), Windows Server 2022, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 21H2 for 32-bit Systems
Fixed versions10.0.20348.5020, 10.0.17763.8644, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082142. Install KB5082123. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5083768.

Microsoft Security Response CenterCVE-2026-27926
HighCVSS 7.0

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver 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, Windows Server 2019 (Server Core installation), Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060.

Microsoft Security Response CenterCVE-2026-27925
HighCVSS 6.5

Windows UPnP Device Host Information Disclosure Vulnerability

Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to disclose information over an adjacent network.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-27924
HighCVSS 7.8

Desktop Window Manager Elevation of Privilege Vulnerability

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184, 10.0.22631.6936
Vendor guidance

Install KB5082142. Install KB5082200. Install KB5082052. Install KB5082060.

Microsoft Security Response CenterCVE-2026-27923
HighCVSS 7.8

Desktop Window Manager Elevation of Privilege Vulnerability

Use after free in Desktop Window Manager 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, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5082127. Install KB5082126.

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