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Microsoft Windows 11 26H1 vulnerabilities

2,496 known vulnerabilities affecting microsoft/windows_11_26h1.

Total CVEs
2,496
CISA KEV
5
actively exploited
Public exploits
2
Exploited in wild
7
Severity breakdown
CRITICAL92HIGH1847MEDIUM553LOW4

Vulnerabilities

Page 91 of 125
CVE-2026-83841P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-83841 [HIGH] CWE-362 CVE-2026-83841: 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 allows an authorized attacker to elevate privileges locally.
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CVE-2026-50378P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50378 [HIGH] CWE-362 CVE-2026-50378: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Key Guard allows an authorized attacker to elevate privileges locally.
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CVE-2026-54107P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-14
CVE-2026-54107 [HIGH] CWE-362 CVE-2026-54107: 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 allows an authorized attacker to elevate privileges locally.
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CVE-2026-50667P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-14
CVE-2026-50667 [HIGH] CWE-362 CVE-2026-50667: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows NTFS allows an authorized attacker to elevate privileges locally.
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CVE-2026-58527P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-14
CVE-2026-58527 [HIGH] CWE-362 CVE-2026-58527: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an authorized attacker to elevate privileges locally.
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CVE-2026-50317P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50317 [HIGH] CWE-362 CVE-2026-50317: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Operating Systems allows an authorized attacker to elevate privileges locally.
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CVE-2026-50676P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-14
CVE-2026-50676 [HIGH] CWE-362 CVE-2026-50676: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges locally.
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CVE-2026-34340P3HIGHCVSS 7.0fixed in 10.0.28000.21132026-05-12
CVE-2026-34340 [HIGH] CWE-416 CVE-2026-34340: Use after free in Windows Projected File System allows an authorized attacker to elevate privileges Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-33104P3HIGHCVSS 7.0fixed in 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.
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CVE-2026-34351P3HIGHCVSS 7.0fixed in 10.0.28000.21132026-05-12
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.
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CVE-2026-32090P3HIGHCVSS 7.0fixed in 10.0.28000.18362026-04-14
CVE-2026-32090 [HIGH] CWE-362 CVE-2026-32090: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
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CVE-2026-85333P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-85333 [HIGH] CWE-362 CVE-2026-85333: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Performance Monitor allows an authorized attacker to elevate privileges locally.
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CVE-2026-26177P3HIGHCVSS 7.0fixed in 10.0.28000.18362026-04-14
CVE-2026-26177 [HIGH] CWE-416 CVE-2026-26177: 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.
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CVE-2026-27922P3HIGHCVSS 7.0fixed in 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.
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CVE-2026-26182P3HIGHCVSS 7.0fixed in 10.0.28000.18362026-04-14
CVE-2026-26182 [HIGH] CWE-416 CVE-2026-26182: 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.
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CVE-2026-68840P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-68840 [HIGH] CWE-362 CVE-2026-68840: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-69581P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69581 [HIGH] CWE-362 CVE-2026-69581: Use after free in Windows Device Association Service allows an authorized attacker to elevate privil Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-69448P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69448 [HIGH] CWE-362 CVE-2026-69448: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-69385P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69385 [HIGH] CWE-362 CVE-2026-69385: 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.
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CVE-2026-69682P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69682 [HIGH] CWE-362 CVE-2026-69682: Use after free in Windows Host Guardian Service allows an authorized attacker to elevate privileges Use after free in Windows Host Guardian Service allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 11 26H1 vulnerabilities | cvebase