Microsoft Windows 11 Version 26H1 vulnerabilities
242 known vulnerabilities affecting microsoft/windows_11_version_26h1.
Total CVEs
242
CISA KEV
6
actively exploited
Public exploits
5
Exploited in wild
0
Severity breakdown
CRITICAL2HIGH194MEDIUM45LOW1
Vulnerabilities
Page 7 of 13
CVE-2026-27922HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27922 [HIGH] CWE-416 CVE-2026-27922: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-27916HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27916 [HIGH] CWE-416 CVE-2026-27916: Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker t
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32069HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32069 [HIGH] CWE-415 CVE-2026-32069: Double free in Windows Projected File System allows an authorized attacker to elevate privileges loc
Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26180HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26180 [HIGH] CWE-122 CVE-2026-26180: 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-2026-27918HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27918 [HIGH] CWE-362 CVE-2026-27918: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26161HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26161 [HIGH] CWE-20 CVE-2026-26161: Untrusted pointer dereference in Windows Sensor Data Service allows an authorized attacker to elevat
Untrusted pointer dereference in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-27926HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27926 [HIGH] CWE-362 CVE-2026-27926: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-32077HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32077 [HIGH] CWE-822 CVE-2026-32077: Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an author
Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-27927HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27927 [HIGH] CWE-362 CVE-2026-27927: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32093HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32093 [HIGH] CWE-122 CVE-2026-32093: 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.
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CVE-2026-32163HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32163 [HIGH] CWE-362 CVE-2026-32163: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-27908HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27908 [HIGH] CWE-416 CVE-2026-27908: Use after free in Windows TDI Translation Driver (tdx.sys) allows an authorized attacker to elevate
Use after free in Windows TDI Translation Driver (tdx.sys) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-33104HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-33104 [HIGH] CWE-362 CVE-2026-33104: 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-2026-32195HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32195 [HIGH] CWE-121 CVE-2026-32195: Stack-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges lo
Stack-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32159HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32159 [HIGH] CWE-362 CVE-2026-32159: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
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CVE-2026-26167HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26167 [HIGH] CWE-362 CVE-2026-26167: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-33100HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-33100 [HIGH] CWE-416 CVE-2026-33100: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32083HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32083 [HIGH] CWE-362 CVE-2026-32083: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-32225HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32225 [HIGH] CWE-693 CVE-2026-32225: Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security f
Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
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CVE-2026-32082HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32082 [HIGH] CWE-362 CVE-2026-32082: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.
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