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 16 of 129
CVE-2026-105007P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-105007 [HIGH] CWE-125 CVE-2026-105007: An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS)
An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it.
To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to elevate the attacker's privilege level. An attacker wh
nvd
CVE-2026-69499P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69499 [HIGH] CWE-190 CVE-2026-69499: Integer overflow or wraparound in Windows Imaging Component allows an unauthorized attacker to execu
Integer overflow or wraparound in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-62706P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-62706 [HIGH] CWE-121 CVE-2026-62706: Out-of-bounds read in Microsoft Windows Media Foundation allows an unauthorized attacker to execute
Out-of-bounds read in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-62822P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62822 [HIGH] CWE-122 CVE-2026-62822: Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over
Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-83771P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83771 [HIGH] CWE-416 CVE-2026-83771: Use after free in Windows Camera Frame Server Monitor allows an unauthorized attacker to elevate pri
Use after free in Windows Camera Frame Server Monitor allows an unauthorized attacker to elevate privileges over an adjacent network.
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CVE-2026-102214P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-102214 [HIGH] CWE-416 CVE-2026-102214: Use after free in Windows Hyper-V allows an authorized attacker to execute code locally.
Use after free in Windows Hyper-V allows an authorized attacker to execute code locally.
nvd
CVE-2026-70580P3HIGHCVSS 8.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70580 [HIGH] CWE-306 CVE-2026-70580: Missing authentication for critical function in Windows Credential Guard allows an authorized attack
Missing authentication for critical function in Windows Credential Guard allows an authorized attacker to perform spoofing locally.
nvd
CVE-2026-70062P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70062 [HIGH] CWE-415 CVE-2026-70062: Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.
Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-72936P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-72936 [HIGH] CWE-416 CVE-2026-72936: Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-69438P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69438 [HIGH] CWE-681 CVE-2026-69438: Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to e
Incorrect conversion between numeric types in Microsoft JScript allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-62889P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62889 [HIGH] CWE-415 CVE-2026-62889: Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to ex
Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-85926P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85926 [HIGH] CWE-416 CVE-2026-85926: Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-70013P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70013 [HIGH] CWE-416 CVE-2026-70013: Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.
Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.
nvd
CVE-2026-50460P3HIGHCVSS 8.1≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50460 [HIGH] CWE-362 CVE-2026-50460: 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 unauthorized attacker to elevate privileges over a network.
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CVE-2026-69773P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69773 [HIGH] CWE-122 CVE-2026-69773: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69346P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69346 [HIGH] CWE-122 CVE-2026-69346: Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elev
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69643P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69643 [HIGH] CWE-122 CVE-2026-69643: Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privile
Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69727P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69727 [HIGH] CWE-122 CVE-2026-69727: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69826P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69826 [HIGH] CWE-122 CVE-2026-69826: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69371P3HIGHCVSS 8.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69371 [HIGH] CWE-122 CVE-2026-69371: Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privil
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges over a network.
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