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CVE-2026-20875: Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Microsoft Security Response Center
#vulnerability#windows#dos#auth#Windows Local Security Authority Subsystem Service (LSASS)#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-2026-20876: Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain Virtual Trust Level 2 (VTL2) privileges.

CVE-2026-20921: Windows SMB Server Elevation of Privilege Vulnerability

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

CVE-2026-20919: Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-20836: DirectX Graphics Kernel Elevation of Privilege Vulnerability

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

CVE-2026-20834: Windows Spoofing Vulnerability

Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack.