Vendor advisories

Microsoft Security Response Center

Browse 17,903 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 39 minutes ago Checked every 6 hours

17,903 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-2026-32068
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.

Microsoft Security Response CenterCVE-2026-27922
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 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-2026-27921
HighCVSS 7.0

Windows TDI Translation Driver (tdx.sys) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP 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-2026-27920
HighCVSS 7.8

Windows UPnP Device Host Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host 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-2026-27919
HighCVSS 7.8

Windows UPnP Device Host Elevation of Privilege Vulnerability

Untrusted pointer dereference 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-2026-27918
HighCVSS 7.8

Windows Shell Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell 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.

Microsoft Security Response CenterCVE-2026-27917
HighCVSS 7.0

Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) Elevation of Privilege Vulnerability

Use after free in Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) 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 KB5082126. Install KB5083768.

Microsoft Security Response CenterCVE-2026-27916
HighCVSS 7.8

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-2026-27915
HighCVSS 7.8

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-2026-27914
HighCVSS 7.8

Microsoft Management Console Elevation of Privilege Vulnerability

Improper access control in Microsoft Management Console 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-2026-27913
HighCVSS 7.7

Windows BitLocker Security Feature Bypass Vulnerability

Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally.

Affected productsWindows Server 2019, Windows Server 2022, 23H2 Edition (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation)
Fixed versions10.0.17763.8644, 10.0.25398.2274, 10.0.14393.9060, 10.0.20348.5020
Vendor guidance

Install KB5082123. Install KB5082060. Install KB5082198. Install KB5082142. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-27912
HighCVSS 8.0

Windows Kerberos Elevation of Privilege Vulnerability

Improper authorization in Windows Kerberos allows an authorized attacker to elevate privileges over an adjacent 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. Install KB5082127. Install KB5082126.

Microsoft Security Response CenterCVE-2026-27911
HighCVSS 7.8

Windows User Interface Core Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core 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 KB5083768.

Microsoft Security Response CenterCVE-2026-27910
HighCVSS 7.8

Windows Installer Elevation of Privilege Vulnerability

Improper handling of insufficient permissions or privileges in Windows Installer 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-2026-27909
HighCVSS 7.8

Windows Search Service Elevation of Privilege Vulnerability

Use after free in Microsoft Windows Search Component 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.

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.

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