Microsoft Windows 11 Version 23H2 vulnerabilities

CVE-2026-77500 [HIGH] CWE-763 CVE-2026-77500: Release of invalid pointer or reference in Windows Device Association Service allows an authorized a Release of invalid pointer or reference in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-68875 [HIGH] CWE-126 CVE-2026-68875: Buffer over-read in Windows NTFS allows an authorized attacker to execute code locally. Buffer over-read in Windows NTFS allows an authorized attacker to execute code locally.

CVE-2026-69421 [HIGH] CWE-122 CVE-2026-69421: Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker t Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-69532 [HIGH] CWE-125 CVE-2026-69532: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-69538 [HIGH] CWE-125 CVE-2026-69538: Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to execute code locally. Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to execute code locally.

CVE-2026-69312 [HIGH] CWE-125 CVE-2026-69312: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-69582 [HIGH] CWE-126 CVE-2026-69582: Buffer over-read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate Buffer over-read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-69265 [HIGH] CWE-125 CVE-2026-69265: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-61937 [HIGH] CWE-122 CVE-2026-61937: Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileg Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-59127 [HIGH] CWE-190 CVE-2026-59127: Integer overflow or wraparound in Windows Installer allows an authorized attacker to elevate privile Integer overflow or wraparound in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-62888 [HIGH] CWE-416 CVE-2026-62888: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-61932 [HIGH] CWE-122 CVE-2026-61932: Access of resource using incompatible type ('type confusion') in Windows DWM Core Library allows an Access of resource using incompatible type ('type confusion') in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-62701 [HIGH] CWE-416 CVE-2026-62701: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-42982 [HIGH] CWE-1288 CVE-2026-42982: Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized a Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

CVE-2026-100217 [HIGH] CWE-862 CVE-2026-100217: Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privi Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privileges locally.

CVE-2026-32077 [HIGH] CWE-822 CVE-2026-32077: Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an author Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

CVE-2026-45656 [HIGH] CWE-693 CVE-2026-45656: Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feat Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.

CVE-2025-49732 [HIGH] CWE-122 CVE-2025-49732: Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-83791 [HIGH] CWE-283 CVE-2026-83791: Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.

CVE-2026-83792 [HIGH] CWE-863 CVE-2026-83792: Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate p Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.