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MSRC Security Update Guide

Get the latest updates from MSRC Security Update Guide directly as they happen.

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Latest posts

Last updated 3 days ago

CVE-2026-21226 Azure Core shared client library for Python Remote Code Execution Vulnerability

3 days ago

Deserialization of untrusted data in Azure Core shared client library for Python...

CVE-2026-20804 Windows Hello Tampering Vulnerability

3 days ago

Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform...

CVE-2026-20811 Win32k Elevation of Privilege Vulnerability

3 days ago

Access of resource using incompatible type ('type confusion') in Windows Win32K -...

CVE-2026-20809 Windows Kernel Memory Elevation of Privilege Vulnerability

3 days ago

Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized...

CVE-2026-20812 LDAP Tampering Vulnerability

3 days ago

Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows...

CVE-2026-20810 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

3 days ago

Free of memory not on the heap in Windows Ancillary Function Driver...

CVE-2026-20939 Windows File Explorer Information Disclosure Vulnerability

3 days ago

Exposure of sensitive information to an unauthorized actor in Windows File Explorer...

CVE-2026-20803 Microsoft SQL Server Elevation of Privilege Vulnerability

3 days ago

Missing authentication for critical function in SQL Server allows an authorized attacker...

CVE-2026-20958 Microsoft SharePoint Information Disclosure Vulnerability

3 days ago

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker...

CVE-2026-20965 Windows Admin Center Elevation of Privilege Vulnerability

3 days ago

Improper verification of cryptographic signature in Windows Admin Center allows an authorized...

CVE-2026-0386 Windows Deployment Services Remote Code Execution Vulnerability

3 days ago

Improper access control in Windows Deployment Services allows an unauthorized attacker to...

CVE-2026-20808 Windows File Explorer Elevation of Privilege Vulnerability

3 days ago

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