Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-69971 [MEDIUM] CWE-863 CVE-2026-69971: Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose inf Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.

CVE-2026-85794 [MEDIUM] CWE-125 CVE-2026-85794: Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to disclose information locally.

CVE-2026-48566 [MEDIUM] CWE-125 CVE-2026-48566: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-96921 [MEDIUM] CWE-843 CVE-2026-96921: Access of resource using incompatible type ('type confusion') in Windows Message Queuing Queue Manag Access of resource using incompatible type ('type confusion') in Windows Message Queuing Queue Manager allows an authorized attacker to disclose information locally.

CVE-2026-96851 [MEDIUM] CWE-126 CVE-2026-96851: Buffer over-read in Windows Management Instrumentation allows an authorized attacker to disclose inf Buffer over-read in Windows Management Instrumentation allows an authorized attacker to disclose information locally.

CVE-2026-97790 [MEDIUM] CWE-59 CVE-2026-97790: Improper link resolution before file access ('link following') in Windows Container Isolation FS Fil Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.

CVE-2026-96857 [MEDIUM] CWE-552 CVE-2026-96857: Files or directories accessible to external parties in Windows Projected File System allows an autho Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.

CVE-2026-50475 [MEDIUM] CWE-126 CVE-2026-50475: Buffer over-read in Windows Kernel allows an authorized attacker to disclose information locally. Buffer over-read in Windows Kernel allows an authorized attacker to disclose information locally.

CVE-2026-68830 [MEDIUM] CWE-59 CVE-2026-68830: Improper link resolution before file access ('link following') in Windows Universal Plug and Play (U Improper link resolution before file access ('link following') in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to disclose information locally.

CVE-2026-72971 [MEDIUM] CWE-59 CVE-2026-72971: Improper link resolution before file access ('link following') in Windows Container Isolation FS Fil Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.

CVE-2026-69403 [MEDIUM] CWE-862 CVE-2026-69403: Missing authorization in Windows SMB Server allows an authorized attacker to disclose information lo Missing authorization in Windows SMB Server allows an authorized attacker to disclose information locally.

CVE-2026-59135 [MEDIUM] CWE-1390 CVE-2026-59135: Weak authentication in Microsoft Windows Search Component allows an authorized attacker to disclose Weak authentication in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.

CVE-2026-69905 [MEDIUM] CWE-862 CVE-2026-69905: Missing authorization in Windows AppX Deployment Service allows an authorized attacker to perform ta Missing authorization in Windows AppX Deployment Service allows an authorized attacker to perform tampering locally.

CVE-2026-20806 [MEDIUM] CWE-843 CVE-2026-20806: Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized at Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.

CVE-2026-69453 [MEDIUM] CWE-862 CVE-2026-69453: Missing authorization in Microsoft Windows Search Component allows an authorized attacker to perform Missing authorization in Microsoft Windows Search Component allows an authorized attacker to perform tampering locally.

CVE-2026-61936 [MEDIUM] CWE-862 CVE-2026-61936: Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally.

CVE-2026-50495 [MEDIUM] CWE-284 CVE-2026-50495: Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.

CVE-2026-95904 [MEDIUM] CWE-126 CVE-2026-95904: Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose informat Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.

CVE-2026-88158 [MEDIUM] CWE-125 CVE-2026-88158: Out-of-bounds read in Microsoft Digest Authentication allows an authorized attacker to disclose info Out-of-bounds read in Microsoft Digest Authentication allows an authorized attacker to disclose information locally.

CVE-2026-96315 [MEDIUM] CWE-862 CVE-2026-96315: Missing authorization in Windows Overlay Filter allows an authorized attacker to perform tampering l Missing authorization in Windows Overlay Filter allows an authorized attacker to perform tampering locally.