Microsoft Windows 11 Version 26H2 vulnerabilities

CVE-2026-85931 [HIGH] CWE-122 CVE-2026-85931: Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to execute code over a network.

CVE-2026-105723 [CRITICAL] CWE-822 CVE-2026-105723: Untrusted pointer dereference in Windows Distributed File System (DFS) allows an unauthorized attack Untrusted pointer dereference in Windows Distributed File System (DFS) allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83693 [CRITICAL] CWE-122 CVE-2026-83693: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-83519 [CRITICAL] CWE-122 CVE-2026-83519: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-83748 [CRITICAL] CWE-122 CVE-2026-83748: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-83935 [CRITICAL] CWE-122 CVE-2026-83935: Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network.

CVE-2026-97815 [CRITICAL] CWE-122 CVE-2026-97815: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-88159 [HIGH] CWE-125 CVE-2026-88159: Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized atta Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

CVE-2026-83889 [HIGH] CWE-763 CVE-2026-83889: Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code over a network.

CVE-2026-83578 [CRITICAL] CWE-122 CVE-2026-83578: Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to exec Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.

CVE-2026-70210 [HIGH] CWE-122 CVE-2026-70210: Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to elevate privileges o Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83643 [HIGH] CWE-121 CVE-2026-83643: Stack-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute co Stack-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2026-83934 [HIGH] CWE-121 CVE-2026-83934: Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a n Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

CVE-2026-88142 [HIGH] CWE-122 CVE-2026-88142: Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized atta Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

CVE-2026-97805 [CRITICAL] CWE-20 CVE-2026-97805: Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-70068 [HIGH] CWE-122 CVE-2026-70068: Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an unauthorized attac Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-70262 [HIGH] CWE-122 CVE-2026-70262: Heap-based buffer overflow in WebDAV allows an unauthorized attacker to elevate privileges over a ne Heap-based buffer overflow in WebDAV allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83789 [HIGH] CWE-122 CVE-2026-83789: Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileg Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83777 [HIGH] CWE-122 CVE-2026-83777: Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate p Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an adjacent network.

CVE-2026-83928 [HIGH] CWE-306 CVE-2026-83928: Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthor Out-of-bounds write in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to execute code over a network.