Microsoft Windows 11 Version 25H2 vulnerabilities

CVE-2025-59195 [HIGH] CWE-362 CVE-2025-59195: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Graphics Component allows an authorized attacker to deny service locally.

CVE-2025-59261 [HIGH] CWE-367 CVE-2025-59261: Time-of-check time-of-use (toctou) race condition in Microsoft Graphics Component allows an authoriz Time-of-check time-of-use (toctou) race condition in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-50507 [MEDIUM] CWE-306 CVE-2026-50507: Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a securi Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-32170 [MEDIUM] CWE-415 CVE-2026-32170: Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally. Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally.

CVE-2026-21530 [MEDIUM] CWE-415 CVE-2026-21530: Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally. Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally.

CVE-2026-21265 [MEDIUM] CWE-1329 CVE-2026-21265: Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificate Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificates are approaching expiration, and devices containing affected certificate versions must update them to maintain Secure Boot functionality and avoid compromising security by losing security fixes related to Windows boot manager or Secure Boot. The ope

CVE-2026-40380 [MEDIUM] CWE-122 CVE-2026-40380: Heap-based buffer overflow in Volume Manager Extension Driver allows an authorized attacker to execu Heap-based buffer overflow in Volume Manager Extension Driver allows an authorized attacker to execute code with a physical attack.

CVE-2026-32072 [MEDIUM] CWE-287 CVE-2026-32072: Improper authentication in Windows Active Directory allows an unauthorized attacker to perform spoof Improper authentication in Windows Active Directory allows an unauthorized attacker to perform spoofing locally.

CVE-2026-20927 [MEDIUM] CWE-362 CVE-2026-20927: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

CVE-2026-45658 [MEDIUM] CWE-284 CVE-2026-45658: Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a securi Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2025-62567 [MEDIUM] CWE-191 CVE-2025-62567: Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny serv Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.

CVE-2026-25185 [MEDIUM] CWE-200 CVE-2026-25185: Exposure of sensitive information to an unauthorized actor in Windows Shell Link Processing allows a Exposure of sensitive information to an unauthorized actor in Windows Shell Link Processing allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-20821 [MEDIUM] CWE-200 CVE-2026-20821: Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows a Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an unauthorized attacker to disclose information locally.

CVE-2026-20851 [MEDIUM] CWE-125 CVE-2026-20851: Out-of-bounds read in Capability Access Management Service (camsvc) allows an unauthorized attacker Out-of-bounds read in Capability Access Management Service (camsvc) allows an unauthorized attacker to disclose information locally.

CVE-2026-20824 [MEDIUM] CWE-693 CVE-2026-20824: Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass a security feature locally.

CVE-2026-23670 [MEDIUM] CWE-822 CVE-2026-23670: Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an autho Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

CVE-2026-32088 [MEDIUM] CWE-362 CVE-2026-32088: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Biometric Service allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-35423 [MEDIUM] CWE-125 CVE-2026-35423: Out-of-bounds read in Telnet Client allows an unauthorized attacker to disclose information over a n Out-of-bounds read in Telnet Client allows an unauthorized attacker to disclose information over a network.

CVE-2026-45595 [MEDIUM] CWE-693 CVE-2026-45595: Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to by Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-45608 [MEDIUM] CWE-125 CVE-2026-45608: Out-of-bounds read in Windows DHCP Server allows an authorized attacker to disclose information loca Out-of-bounds read in Windows DHCP Server allows an authorized attacker to disclose information locally.