CVE-2026-20809 Windows Kernel Memory Elevation of Privilege Vulnerability
Published January 14, 2026
Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.
Published January 14, 2026
Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.
Published January 14, 2026
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
Published January 14, 2026
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
Published January 14, 2026
Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.
Published January 14, 2026
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Published January 14, 2026
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Published January 14, 2026
Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.
Published January 14, 2026
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
Published January 14, 2026
Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Published January 14, 2026
Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
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