Microsoft Windows 10 21H2 vulnerabilities

CVE-2026-20824 [MEDIUM] CWE-693 CVE-2026-20824: Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass a security feature locally.

CVE-2026-32088 [MEDIUM] CWE-362 CVE-2026-32088: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Biometric Service allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-72980 [MEDIUM] CWE-427 CVE-2026-72980: Uncontrolled search path element in Windows Hello allows an authorized attacker to bypass a security Uncontrolled search path element in Windows Hello allows an authorized attacker to bypass a security feature locally.

CVE-2026-68831 [MEDIUM] CWE-552 CVE-2026-68831: Files or directories accessible to external parties in Windows Defender Firewall Service allows an a Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker to disclose information locally.

CVE-2026-62687 [MEDIUM] CWE-59 CVE-2026-62687: Improper link resolution before file access ('link following') in Windows Backup Engine allows an au Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to disclose information locally.

CVE-2026-83507 [MEDIUM] CWE-59 CVE-2026-83507: Improper link resolution before file access ('link following') in Windows Update Orchestrator Servic Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to disclose information locally.

CVE-2026-69351 [MEDIUM] CWE-359 CVE-2026-69351: Exposure of private personal information to an unauthorized actor in Windows Universal Plug and Play Exposure of private personal information to an unauthorized actor in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to disclose information locally.

CVE-2026-83933 [MEDIUM] CWE-59 CVE-2026-83933: Improper link resolution before file access ('link following') in Windows Update Orchestrator Servic Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to disclose information locally.

CVE-2026-83565 [MEDIUM] CWE-126 CVE-2026-83565: Buffer over-read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose i Buffer over-read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.

CVE-2026-70041 [MEDIUM] CWE-126 CVE-2026-70041: Buffer over-read in Windows CD-ROM Driver allows an authorized attacker to disclose information loca Buffer over-read in Windows CD-ROM Driver allows an authorized attacker to disclose information locally.

CVE-2026-69954 [MEDIUM] CWE-126 CVE-2026-69954: Buffer over-read in Windows Overlay Filter allows an authorized attacker to disclose information loc Buffer over-read in Windows Overlay Filter allows an authorized attacker to disclose information locally.

CVE-2026-70234 [MEDIUM] CWE-126 CVE-2026-70234: Buffer over-read in Desktop Window Manager allows an authorized attacker to disclose information loc Buffer over-read in Desktop Window Manager allows an authorized attacker to disclose information locally.

CVE-2026-68843 [MEDIUM] CWE-416 CVE-2026-68843: Use after free in Microsoft Office Word allows an authorized attacker to disclose information locall Use after free in Microsoft Office Word allows an authorized attacker to disclose information locally.

CVE-2026-83719 [MEDIUM] CWE-126 CVE-2026-83719: Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information lo Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.

CVE-2026-83664 [MEDIUM] CWE-843 CVE-2026-83664: Access of resource using incompatible type ('type confusion') in Windows Portable Device File System Access of resource using incompatible type ('type confusion') in Windows Portable Device File System Driver allows an authorized attacker to disclose information locally.

CVE-2026-85935 [MEDIUM] CWE-126 CVE-2026-85935: Buffer over-read in Windows USB Driver allows an authorized attacker to disclose information locally Buffer over-read in Windows USB Driver allows an authorized attacker to disclose information locally.

CVE-2026-70280 [MEDIUM] CWE-863 CVE-2026-70280: Incorrect authorization in Windows Hello allows an authorized attacker to bypass a security feature Incorrect authorization in Windows Hello allows an authorized attacker to bypass a security feature locally.

CVE-2026-69979 [MEDIUM] CWE-424 CVE-2026-69979: Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attack Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.

CVE-2026-83864 [MEDIUM] CWE-290 CVE-2026-83864: Improper access control in Windows NTFS allows an authorized attacker to disclose information locall Improper access control in Windows NTFS allows an authorized attacker to disclose information locally.

CVE-2026-96854 [MEDIUM] CWE-843 CVE-2026-96854: Access of resource using incompatible type ('type confusion') in Windows Device Association Service Access of resource using incompatible type ('type confusion') in Windows Device Association Service allows an authorized attacker to disclose information locally.