Microsoft Windows 11 Version 26H1 vulnerabilities
2,567 known vulnerabilities affecting microsoft/windows_11_version_26h1.
Total CVEs
2,567
CISA KEV
10
actively exploited
Public exploits
6
Exploited in wild
13
Severity breakdown
CRITICAL97HIGH1901MEDIUM564LOW5
Vulnerabilities
Page 105 of 129
CVE-2026-71347P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-71347 [HIGH] CWE-362 CVE-2026-71347: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Security Center allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-85943P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85943 [HIGH] CWE-122 CVE-2026-85943: Time-of-check time-of-use (toctou) race condition in Reliable Multicast Transport Driver (RMCAST) al
Time-of-check time-of-use (toctou) race condition in Reliable Multicast Transport Driver (RMCAST) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-83839P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83839 [HIGH] CWE-367 CVE-2026-83839: Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker t
Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-83868P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83868 [HIGH] CWE-362 CVE-2026-83868: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Bluetooth Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-69779P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69779 [HIGH] CWE-367 CVE-2026-69779: Time-of-check time-of-use (toctou) race condition in Windows Win32K allows an authorized attacker to
Time-of-check time-of-use (toctou) race condition in Windows Win32K allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-62728P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62728 [HIGH] CWE-125 CVE-2026-62728: Time-of-check time-of-use (toctou) race condition in Windows Common Log File System Driver allows an
Time-of-check time-of-use (toctou) race condition in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50356P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50356 [HIGH] CWE-362 CVE-2026-50356: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-49784P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-49784 [HIGH] CWE-362 CVE-2026-49784: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-88149P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-88149 [HIGH] CWE-415 CVE-2026-88149: Double free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevat
Double free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34341P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-34341 [HIGH] CWE-415 CVE-2026-34341: Double free in Windows Link-Layer Discovery Protocol (LLDP) allows an authorized attacker to elevate
Double free in Windows Link-Layer Discovery Protocol (LLDP) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-84018P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-84018 [HIGH] CWE-367 CVE-2026-84018: Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileg
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-25184P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-25184 [HIGH] CWE-362 CVE-2026-25184: Concurrent execution using shared resource with improper synchronization ('race condition') in Applo
Concurrent execution using shared resource with improper synchronization ('race condition') in Applocker Filter Driver (applockerfltr.sys) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32086P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32086 [HIGH] CWE-362 CVE-2026-32086: Concurrent execution using shared resource with improper synchronization ('race condition') in Funct
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32150P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32150 [HIGH] CWE-362 CVE-2026-32150: Concurrent execution using shared resource with improper synchronization ('race condition') in Funct
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32091P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32091 [HIGH] CWE-362 CVE-2026-32091: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
nvd
CVE-2026-87710P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-87710 [HIGH] CWE-362 CVE-2026-87710: Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an authorized a
Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-72942P3MEDIUMCVSS 6.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-72942 [MEDIUM] CWE-125 CVE-2026-72942: Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information
Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-54126P3MEDIUMCVSS 6.5≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-54126 [MEDIUM] CWE-125 CVE-2026-54126: Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a net
Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-62750P3MEDIUMCVSS 6.5≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62750 [MEDIUM] CWE-187 CVE-2026-62750: Partial string comparison in Windows HTTP Protocol Stack allows an unauthorized attacker to perform
Partial string comparison in Windows HTTP Protocol Stack allows an unauthorized attacker to perform tampering over an adjacent network.
nvd
CVE-2026-62757P3MEDIUMCVSS 5.9≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62757 [MEDIUM] CWE-347 CVE-2026-62757: Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker
Improper verification of cryptographic signature in Windows Schannel allows an unauthorized attacker to bypass a security feature over a network.
nvd