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 97 of 125
CVE-2026-50440P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50440 [HIGH] CWE-362 CVE-2026-50440: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-50321P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50321 [HIGH] CWE-362 CVE-2026-50321: 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-2026-42912P3HIGHCVSS 7.0fixed in 10.0.28000.22692026-06-09
CVE-2026-42912 [HIGH] CWE-362 CVE-2026-42912: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-34345P3HIGHCVSS 7.0fixed in 10.0.28000.21132026-05-12
CVE-2026-34345 [HIGH] CWE-362 CVE-2026-34345: 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.
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CVE-2026-68824P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-68824 [HIGH] CWE-362 CVE-2026-68824: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.
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CVE-2026-69466P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69466 [HIGH] CWE-367 CVE-2026-69466: Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to
Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-69319P3HIGHCVSS 7.0fixed in 10.0.28000.29542026-09-08
CVE-2026-69319 [HIGH] CWE-362 CVE-2026-69319: 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 Video Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-62727P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-19
CVE-2026-62727 [HIGH] CWE-362 CVE-2026-62727: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-62693P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62693 [HIGH] CWE-362 CVE-2026-62693: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
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CVE-2026-62734P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62734 [HIGH] CWE-362 CVE-2026-62734: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-62705P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62705 [HIGH] CWE-362 CVE-2026-62705: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-62748P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62748 [HIGH] CWE-362 CVE-2026-62748: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-59122P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-59122 [HIGH] CWE-362 CVE-2026-59122: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-59126P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-59126 [HIGH] CWE-362 CVE-2026-59126: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-62729P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62729 [HIGH] CWE-362 CVE-2026-62729: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-62908P3HIGHCVSS 7.0fixed in 10.0.28000.27042026-08-11
CVE-2026-62908 [HIGH] CWE-362 CVE-2026-62908: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
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CVE-2026-58598P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-16
CVE-2026-58598 [HIGH] CWE-362 CVE-2026-58598: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
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CVE-2026-49803P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-49803 [HIGH] CWE-362 CVE-2026-49803: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-49806P3HIGHCVSS 7.0fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-49806 [HIGH] CWE-362 CVE-2026-49806: 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 Print Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-54996P3HIGHCVSS 7.0fixed in 10.0.28000.25252026-07-14
CVE-2026-54996 [HIGH] CWE-125 CVE-2026-54996: 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 Print Driver allows an authorized attacker to elevate privileges locally.
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