cbcvebase.

Microsoft Windows 11 Version 26H1 vulnerabilities

2,571 known vulnerabilities affecting microsoft/windows_11_version_26h1.

Total CVEs
2,571
CISA KEV
10
actively exploited
Public exploits
6
Exploited in wild
13
Severity breakdown
CRITICAL93HIGH1902MEDIUM571LOW5

Vulnerabilities

Page 44 of 129
CVE-2026-83859P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83859 [HIGH] CWE-416 CVE-2026-83859: Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally. Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
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CVE-2026-49167P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-49167 [HIGH] CWE-416 CVE-2026-49167: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-85906P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85906 [HIGH] CWE-416 CVE-2026-85906: Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges loc Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
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CVE-2026-35417P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
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.
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CVE-2026-83922P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83922 [HIGH] CWE-416 CVE-2026-83922: Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges loc Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
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CVE-2026-83912P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83912 [HIGH] CWE-416 CVE-2026-83912: Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges loc Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
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CVE-2026-71345P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-71345 [HIGH] CWE-787 CVE-2026-71345: Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally. Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally.
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CVE-2026-62697P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-62697 [HIGH] CWE-416 CVE-2026-62697: Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges loc Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
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CVE-2026-56172P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-56172 [HIGH] CWE-416 CVE-2026-56172: Use after free in Windows VHD miniport driver allows an authorized attacker to elevate privileges lo Use after free in Windows VHD miniport driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-69270P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69270 [HIGH] CWE-20 CVE-2026-69270: Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized att Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
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CVE-2026-69307P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69307 [HIGH] CWE-122 CVE-2026-69307: Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized att Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
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CVE-2026-69576P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69576 [HIGH] CWE-416 CVE-2026-69576: Use after free in Graphic Fonts allows an authorized attacker to elevate privileges locally. Use after free in Graphic Fonts allows an authorized attacker to elevate privileges locally.
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CVE-2026-69571P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69571 [HIGH] CWE-122 CVE-2026-69571: Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized att Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
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CVE-2026-65775P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-65775 [HIGH] CWE-416 CVE-2026-65775: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
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CVE-2026-62779P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62779 [HIGH] CWE-416 CVE-2026-62779: Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally. Use after free in Windows Schannel allows an authorized attacker to elevate privileges locally.
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CVE-2026-62707P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62707 [HIGH] CWE-416 CVE-2026-62707: Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate pr Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
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CVE-2026-62711P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62711 [HIGH] CWE-416 CVE-2026-62711: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
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CVE-2026-50436P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50436 [HIGH] CWE-416 CVE-2026-50436: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-54114P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-54114 [HIGH] CWE-416 CVE-2026-54114: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
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CVE-2026-50478P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50478 [HIGH] CWE-416 CVE-2026-50478: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 11 Version 26H1 vulnerabilities | cvebase