Microsoft Windows 11 26H1 vulnerabilities
708 known vulnerabilities affecting microsoft/windows_11_26h1.
Total CVEs
708
CISA KEV
1
actively exploited
Public exploits
2
Exploited in wild
4
Severity breakdown
CRITICAL23HIGH537MEDIUM144LOW4
Vulnerabilities
Page 34 of 36
CVE-2026-34349P4MEDIUMCVSS 5.5fixed in 10.0.28000.22692026-07-14
CVE-2026-34349 [MEDIUM] CWE-200 CVE-2026-34349: Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized att
Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50394P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50394 [MEDIUM] CWE-200 CVE-2026-50394: Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized att
Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50434P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50434 [MEDIUM] CWE-200 CVE-2026-50434: 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.
nvd
CVE-2026-50334P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50334 [MEDIUM] CWE-200 CVE-2026-50334: Exposure of sensitive information to an unauthorized actor in Windows Notification allows an authori
Exposure of sensitive information to an unauthorized actor in Windows Notification allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50339P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50339 [MEDIUM] CWE-200 CVE-2026-50339: 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.
nvd
CVE-2026-33842P4MEDIUMCVSS 5.5fixed in 10.0.28000.22692026-07-14
CVE-2026-33842 [MEDIUM] CWE-200 CVE-2026-33842: 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.
nvd
CVE-2026-50409P4MEDIUMCVSS 5.5fixed in 10.0.28000.25252026-07-14
CVE-2026-50409 [MEDIUM] CWE-200 CVE-2026-50409: Exposure of sensitive information to an unauthorized actor in Windows Overlay Filter allows an autho
Exposure of sensitive information to an unauthorized actor in Windows Overlay Filter allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50430P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50430 [MEDIUM] CWE-200 CVE-2026-50430: 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.
nvd
CVE-2026-50442P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50442 [MEDIUM] CWE-200 CVE-2026-50442: 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.
nvd
CVE-2026-50473P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50473 [MEDIUM] CWE-200 CVE-2026-50473: 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.
nvd
CVE-2026-50456P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50456 [MEDIUM] CWE-200 CVE-2026-50456: 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.
nvd
CVE-2026-41087P4MEDIUMCVSS 5.5fixed in 10.0.28000.22692026-07-14
CVE-2026-41087 [MEDIUM] CWE-200 CVE-2026-41087: 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.
nvd
CVE-2026-32084P4MEDIUMCVSS 5.5fixed in 10.0.28000.18362026-04-14
CVE-2026-32084 [MEDIUM] CWE-200 CVE-2026-32084: 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.
nvd
CVE-2026-32079P4MEDIUMCVSS 5.5fixed in 10.0.28000.18362026-04-14
CVE-2026-32079 [MEDIUM] CWE-200 CVE-2026-32079: 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.
nvd
CVE-2026-44814P4MEDIUMCVSS 5.5fixed in 10.0.28000.22692026-06-09
CVE-2026-44814 [MEDIUM] CWE-122 CVE-2026-44814: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50428P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 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.
nvd
CVE-2026-50437P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50437 [MEDIUM] CWE-125 CVE-2026-50437: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
nvd
CVE-2026-50295P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50295 [MEDIUM] CWE-269 CVE-2026-50295: Improper privilege management in Microsoft Windows DNS allows an authorized attacker to bypass a sec
Improper privilege management in Microsoft Windows DNS allows an authorized attacker to bypass a security feature locally.
nvd
CVE-2026-27931P4MEDIUMCVSS 5.5fixed in 10.0.28000.18362026-04-14
CVE-2026-27931 [MEDIUM] CWE-125 CVE-2026-27931: 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.
nvd
CVE-2026-50431P4MEDIUMCVSS 5.5fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50431 [MEDIUM] CWE-200 CVE-2026-50431: Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability
Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability
nvd