cbcvebase.

Microsoft Windows 11 Version 26H1 vulnerabilities

741 known vulnerabilities affecting microsoft/windows_11_version_26h1.

Total CVEs
741
CISA KEV
6
actively exploited
Public exploits
6
Exploited in wild
9
Severity breakdown
CRITICAL23HIGH567MEDIUM146LOW5

Vulnerabilities

Page 14 of 38
CVE-2026-58537P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58537 [HIGH] CWE-416 CVE-2026-58537: Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to el Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to elevate privileges locally.
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CVE-2026-50493P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50493 [HIGH] CWE-416 CVE-2026-50493: Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locall Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-34330P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-34330 [HIGH] CWE-190 CVE-2026-34330: 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-2026-40408P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-40408 [HIGH] CWE-416 CVE-2026-40408: Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges lo Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
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CVE-2026-27915P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27915 [HIGH] CWE-416 CVE-2026-27915: 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.
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CVE-2026-26162P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26162 [HIGH] CWE-843 CVE-2026-26162: Access of resource using incompatible type ('type confusion') in Windows OLE allows an authorized at Access of resource using incompatible type ('type confusion') in Windows OLE allows an authorized attacker to elevate privileges locally.
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CVE-2026-26163P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26163 [HIGH] CWE-415 CVE-2026-26163: Double free in Windows Kernel allows an authorized attacker to elevate privileges locally. Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-41092P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-41092 [HIGH] CWE-284 CVE-2026-41092: Improper access control in Microsoft Kinect allows an authorized attacker to elevate privileges loca Improper access control in Microsoft Kinect allows an authorized attacker to elevate privileges locally.
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CVE-2026-58634P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58634 [HIGH] CWE-416 CVE-2026-58634: Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-58541P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58541 [HIGH] CWE-843 CVE-2026-58541: Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized at Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.
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CVE-2026-45637P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-45637 [HIGH] CWE-416 CVE-2026-45637: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-45593P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-45593 [HIGH] CWE-190 CVE-2026-45593: Use after free in Windows SDK allows an authorized attacker to elevate privileges locally. Use after free in Windows SDK allows an authorized attacker to elevate privileges locally.
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CVE-2026-42983P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42983 [HIGH] CWE-416 CVE-2026-42983: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-50344P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50344 [HIGH] CWE-285 CVE-2026-50344: Improper authorization in Windows OLE allows an authorized attacker to elevate privileges locally. Improper authorization in Windows OLE allows an authorized attacker to elevate privileges locally.
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CVE-2026-58540P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58540 [HIGH] CWE-285 CVE-2026-58540: Improper authorization in Windows Installer allows an authorized attacker to elevate privileges loca Improper authorization in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-44802P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-44802 [HIGH] CWE-416 CVE-2026-44802: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-44804P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-44804 [HIGH] CWE-416 CVE-2026-44804: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-44813P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-44813 [HIGH] CWE-416 CVE-2026-44813: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-44807P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-44807 [HIGH] CWE-416 CVE-2026-44807: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
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CVE-2026-50358P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50358 [HIGH] CWE-416 CVE-2026-50358: Use after free in Windows Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 11 Version 26H1 vulnerabilities | cvebase