Microsoft Windows 11 Version 26H1 vulnerabilities

CVE-2026-69509 [HIGH] CWE-122 CVE-2026-69509: 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-2026-83995 [HIGH] CWE-122 CVE-2026-83995: 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-2026-83975 [HIGH] CWE-122 CVE-2026-83975: 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-2026-69293 [HIGH] CWE-20 CVE-2026-69293: 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-2026-69323 [HIGH] CWE-122 CVE-2026-69323: 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-2026-69444 [HIGH] CWE-122 CVE-2026-69444: Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate priv Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2026-83970 [HIGH] CWE-122 CVE-2026-83970: 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-2026-72990 [HIGH] CWE-122 CVE-2026-72990: 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-2026-83983 [HIGH] CWE-122 CVE-2026-83983: 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-2026-69542 [HIGH] CWE-122 CVE-2026-69542: Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to e Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges locally.

CVE-2026-77904 [HIGH] CWE-122 CVE-2026-77904: Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an authorized attacker Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-68888 [HIGH] CWE-122 CVE-2026-68888: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.

CVE-2026-73007 [HIGH] CWE-122 CVE-2026-73007: 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-2026-78447 [HIGH] CWE-122 CVE-2026-78447: 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-2026-73021 [HIGH] CWE-20 CVE-2026-73021: 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-2026-69589 [HIGH] CWE-122 CVE-2026-69589: 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-2026-68885 [HIGH] CWE-122 CVE-2026-68885: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.

CVE-2026-69420 [HIGH] CWE-122 CVE-2026-69420: Heap-based buffer overflow in Windows VOLSNAP.SYS allows an authorized attacker to elevate privilege Heap-based buffer overflow in Windows VOLSNAP.SYS allows an authorized attacker to elevate privileges locally.

CVE-2026-72996 [HIGH] CWE-20 CVE-2026-72996: 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-2026-68890 [HIGH] CWE-122 CVE-2026-68890: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.