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Microsoft Windows 11 Version 26H1 vulnerabilities

2,562 known vulnerabilities affecting microsoft/windows_11_version_26h1.

Total CVEs
2,562
CISA KEV
10
actively exploited
Public exploits
6
Exploited in wild
13
Severity breakdown
CRITICAL97HIGH1897MEDIUM563LOW5

Vulnerabilities

Page 123 of 129
CVE-2026-70173P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70173 [MEDIUM] CWE-125 CVE-2026-70173: Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose i Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
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CVE-2026-85909P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85909 [MEDIUM] CWE-822 CVE-2026-85909: Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized a Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.
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CVE-2026-77491P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-77491 [MEDIUM] CWE-125 CVE-2026-77491: Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally. Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.
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CVE-2026-32081P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32081 [MEDIUM] CWE-200 CVE-2026-32081: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an author Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
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CVE-2026-42973P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42973 [MEDIUM] CWE-200 CVE-2026-42973: Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an a Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
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CVE-2026-42970P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42970 [MEDIUM] CWE-200 CVE-2026-42970: Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an a Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
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CVE-2026-50428P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50428 [MEDIUM] CWE-125 CVE-2026-50428: Out-of-bounds read in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorize Out-of-bounds read in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to disclose information locally.
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CVE-2026-78454P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-78454 [MEDIUM] CWE-125 CVE-2026-78454: Out-of-bounds read in Windows CD-ROM Driver allows an authorized attacker to disclose information lo Out-of-bounds read in Windows CD-ROM Driver allows an authorized attacker to disclose information locally.
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CVE-2026-69504P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69504 [MEDIUM] CWE-125 CVE-2026-69504: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
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CVE-2026-69808P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69808 [MEDIUM] CWE-125 CVE-2026-69808: Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally. Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally.
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CVE-2026-69343P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69343 [MEDIUM] CWE-125 CVE-2026-69343: Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to disclose information l Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
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CVE-2026-69286P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69286 [MEDIUM] CWE-20 CVE-2026-69286: Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to disclose information locally.
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CVE-2026-69303P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69303 [MEDIUM] CWE-125 CVE-2026-69303: Out-of-bounds read in Push Message Routing Service allows an authorized attacker to disclose informa Out-of-bounds read in Push Message Routing Service allows an authorized attacker to disclose information locally.
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CVE-2026-69741P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69741 [MEDIUM] CWE-125 CVE-2026-69741: Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information lo Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
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CVE-2026-70145P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-70145 [MEDIUM] CWE-125 CVE-2026-70145: Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose i Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
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CVE-2026-69353P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69353 [MEDIUM] CWE-125 CVE-2026-69353: Out-of-bounds read in Windows Text Shaping allows an authorized attacker to disclose information loc Out-of-bounds read in Windows Text Shaping allows an authorized attacker to disclose information locally.
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CVE-2026-69390P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69390 [MEDIUM] CWE-125 CVE-2026-69390: Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information lo Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
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CVE-2026-59137P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-59137 [MEDIUM] CWE-908 CVE-2026-59137: Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disc Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.
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CVE-2026-62887P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-62887 [MEDIUM] CWE-125 CVE-2026-62887: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
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CVE-2026-59128P4MEDIUMCVSS 5.5≥ 10.0.28000.0, < 10.0.28000.27042026-08-11
CVE-2026-59128 [MEDIUM] CWE-125 CVE-2026-59128: Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.
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Microsoft Windows 11 Version 26H1 vulnerabilities | cvebase