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 6 of 13
CVE-2026-27923HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-27923 [HIGH] CWE-416 CVE-2026-27923: 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.
nvd
CVE-2026-32221HIGHCVSS 8.4≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32221 [HIGH] CWE-122 CVE-2026-32221: Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execut
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-26151HIGHCVSS 7.1≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26151 [HIGH] CWE-357 CVE-2026-26151: Insufficient ui warning of dangerous operations in Windows Remote Desktop allows an unauthorized att
Insufficient ui warning of dangerous operations in Windows Remote Desktop allows an unauthorized attacker to perform spoofing over a network.
nvd
CVE-2026-26162HIGHCVSS 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.
nvd
CVE-2026-32158HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32158 [HIGH] CWE-362 CVE-2026-32158: 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-2026-26163HIGHCVSS 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.
nvd
CVE-2026-32075HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32075 [HIGH] CWE-416 CVE-2026-32075: 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-2026-25184HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-25184 [HIGH] CWE-362 CVE-2026-25184: Concurrent execution using shared resource with improper synchronization ('race condition') in Applo
Concurrent execution using shared resource with improper synchronization ('race condition') in Applocker Filter Driver (applockerfltr.sys) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26173HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26173 [HIGH] CWE-362 CVE-2026-26173: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-33101HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-33101 [HIGH] CWE-416 CVE-2026-33101: Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileg
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26166HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26166 [HIGH] CWE-415 CVE-2026-26166: Double free in Windows Shell allows an authorized attacker to elevate privileges locally.
Double free in Windows Shell allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-33098HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-33098 [HIGH] CWE-416 CVE-2026-33098: Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elev
Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32073HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32073 [HIGH] CWE-416 CVE-2026-32073: 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-2026-26165HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26165 [HIGH] CWE-416 CVE-2026-26165: Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.
Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32154HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32154 [HIGH] CWE-416 CVE-2026-32154: 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.
nvd
CVE-2026-32157HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32157 [HIGH] CWE-416 CVE-2026-32157: Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a netwo
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-26184HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26184 [HIGH] CWE-126 CVE-2026-26184: Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privilege
Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26170HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26170 [HIGH] CWE-20 CVE-2026-26170: Improper input validation in Microsoft PowerShell allows an authorized attacker to elevate privilege
Improper input validation in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-33827HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-33827 [HIGH] CWE-362 CVE-2026-33827: 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 unauthorized attacker to execute code over a network.
nvd
CVE-2026-26174HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26174 [HIGH] CWE-362 CVE-2026-26174: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
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