Microsoft Windows 11 Version 25H2 vulnerabilities
512 known vulnerabilities affecting microsoft/windows_11_version_25h2.
Total CVEs
512
CISA KEV
12
actively exploited
Public exploits
7
Exploited in wild
0
Severity breakdown
CRITICAL4HIGH386MEDIUM120LOW2
Vulnerabilities
Page 3 of 26
CVE-2026-34331HIGHCVSS 7.0≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34331 [HIGH] CWE-362 CVE-2026-34331: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34344HIGHCVSS 7.8≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34344 [HIGH] CWE-843 CVE-2026-34344: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-40369HIGHCVSS 7.8≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-40369 [HIGH] CWE-822 CVE-2026-40369: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges loc
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34334HIGHCVSS 7.0≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34334 [HIGH] CWE-362 CVE-2026-34334: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-41088HIGHCVSS 7.8≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-41088 [HIGH] CWE-73 CVE-2026-41088: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-40413HIGHCVSS 7.4≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-40413 [HIGH] CWE-476 CVE-2026-40413: Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an a
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network.
nvd
CVE-2026-40407HIGHCVSS 7.8≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-40407 [HIGH] CWE-122 CVE-2026-40407: Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to
Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34351HIGHCVSS 7.0≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34351 [HIGH] CWE-362 CVE-2026-34351: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-35417HIGHCVSS 7.8≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-35417 [HIGH] CWE-843 CVE-2026-35417: Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42825HIGHCVSS 7.0≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-42825 [HIGH] CWE-416 CVE-2026-42825: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca
Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34337HIGHCVSS 7.0≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34337 [HIGH] CWE-362 CVE-2026-34337: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-35422MEDIUMCVSS 6.5≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-35422 [MEDIUM] CWE-288 CVE-2026-35422: Authentication bypass using an alternate path or channel in Windows TCP/IP allows an authorized atta
Authentication bypass using an alternate path or channel in Windows TCP/IP allows an authorized attacker to bypass a security feature over a network.
nvd
CVE-2026-34339MEDIUMCVSS 5.5≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-34339 [MEDIUM] CWE-476 CVE-2026-34339: Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorize
Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.
nvd
CVE-2026-32170MEDIUMCVSS 6.7≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
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.
nvd
CVE-2026-32209MEDIUMCVSS 4.4≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-32209 [MEDIUM] CWE-284 CVE-2026-32209: Improper access control in Windows Filtering Platform (WFP) allows an authorized attacker to bypass
Improper access control in Windows Filtering Platform (WFP) allows an authorized attacker to bypass a security feature locally.
nvd
CVE-2026-35423MEDIUMCVSS 5.4≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
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.
nvd
CVE-2026-40380MEDIUMCVSS 6.2≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
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.
nvd
CVE-2026-21530MEDIUMCVSS 6.7≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
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.
nvd
CVE-2026-35419MEDIUMCVSS 5.5≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-35419 [MEDIUM] CWE-125 CVE-2026-35419: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
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CVE-2026-41097MEDIUMCVSS 6.7≥ 10.0.26200.0, < 10.0.26200.84572026-05-12
CVE-2026-41097 [MEDIUM] CWE-1329 CVE-2026-41097: Reliance on a component that is not updateable in Windows Secure Boot allows an authorized attacker
Reliance on a component that is not updateable in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
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