Microsoft Windows 11 Version 26H1 vulnerabilities

CVE-2026-69691 [HIGH] CWE-122 CVE-2026-69691: Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-69476 [HIGH] CWE-122 CVE-2026-69476: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69432 [HIGH] CWE-122 CVE-2026-69432: Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privile Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-70583 [HIGH] CWE-122 CVE-2026-70583: Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privil Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges locally.

CVE-2026-72967 [HIGH] CWE-122 CVE-2026-72967: Heap-based buffer overflow in Windows Network Connection Broker allows an authorized attacker to ele Heap-based buffer overflow in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.

CVE-2026-83988 [HIGH] CWE-122 CVE-2026-83988: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-72944 [HIGH] CWE-122 CVE-2026-72944: Heap-based buffer overflow in Windows Fax Service allows an authorized attacker to elevate privilege Heap-based buffer overflow in Windows Fax Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69604 [HIGH] CWE-122 CVE-2026-69604: Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.

CVE-2026-68841 [HIGH] CWE-122 CVE-2026-68841: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges local Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-73020 [HIGH] CWE-122 CVE-2026-73020: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-73000 [HIGH] CWE-122 CVE-2026-73000: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83986 [HIGH] CWE-122 CVE-2026-83986: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69459 [HIGH] CWE-122 CVE-2026-69459: Heap-based buffer overflow in Windows Power Dependency Coordinator allows an authorized attacker to Heap-based buffer overflow in Windows Power Dependency Coordinator allows an authorized attacker to elevate privileges locally.

CVE-2026-83976 [HIGH] CWE-122 CVE-2026-83976: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83954 [HIGH] CWE-122 CVE-2026-83954: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69348 [HIGH] CWE-122 CVE-2026-69348: Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-83978 [HIGH] CWE-122 CVE-2026-83978: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-73015 [HIGH] CWE-122 CVE-2026-73015: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-72988 [HIGH] CWE-122 CVE-2026-72988: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69720 [HIGH] CWE-122 CVE-2026-69720: Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate p Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.