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CVE-2026-20859: Windows Kernel-Mode Driver Elevation of Privilege Vulnerability

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

Microsoft Security Response Center
#vulnerability#windows#auth#Windows Kernel-Mode Drivers#Security Vulnerability
CVE-2026-20869: Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally.

CVE-2026-20860: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-20852: Windows Hello Tampering Vulnerability

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

CVE-2026-20838: Windows Kernel Information Disclosure Vulnerability

Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.