Microsoft Windows 11 Version 26H2 vulnerabilities

CVE-2026-97799 [HIGH] CWE-347 CVE-2026-97799: Improper verification of cryptographic signature in Windows Audio Service allows an authorized attac Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.

CVE-2026-97830 [HIGH] CWE-415 CVE-2026-97830: Double free in Windows Internet Information Services allows an unauthorized attacker to deny service Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

CVE-2026-85338 [HIGH] CWE-125 CVE-2026-85338: Out-of-bounds read in Microsoft Graphics Component allows an authorized attacker to elevate privileg Out-of-bounds read in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-85842 [HIGH] CWE-134 CVE-2026-85842: Use of externally-controlled format string in Windows Image Acquisition allows an authorized attacke Use of externally-controlled format string in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.

CVE-2026-96867 [HIGH] CWE-125 CVE-2026-96867: Out-of-bounds read in Windows NTFS allows an authorized attacker to execute code locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to execute code locally.

CVE-2026-96862 [HIGH] CWE-125 CVE-2026-96862: Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges loca Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-97792 [HIGH] CWE-732 CVE-2026-97792: Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an auth Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-85796 [HIGH] CWE-121 CVE-2026-85796: Numeric truncation error in Windows Installer allows an authorized attacker to elevate privileges lo Numeric truncation error in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-88194 [HIGH] CWE-125 CVE-2026-88194: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88182 [HIGH] CWE-416 CVE-2026-88182: Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privil Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-88181 [HIGH] CWE-125 CVE-2026-88181: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88188 [HIGH] CWE-125 CVE-2026-88188: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88179 [HIGH] CWE-125 CVE-2026-88179: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-83741 [HIGH] CWE-416 CVE-2026-83741: Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally. Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally.

CVE-2026-69650 [HIGH] CWE-347 CVE-2026-69650: Improper verification of cryptographic signature in Windows Key Distribution Center allows an author Improper verification of cryptographic signature in Windows Key Distribution Center allows an authorized attacker to elevate privileges locally.

CVE-2026-85933 [HIGH] CWE-416 CVE-2026-85933: Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileg Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.

CVE-2026-97813 [MEDIUM] CWE-122 CVE-2026-97813: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information over a network.

CVE-2026-83516 [HIGH] CWE-125 CVE-2026-83516: Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthori Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

CVE-2026-83848 [HIGH] CWE-822 CVE-2026-83848: Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

CVE-2026-70142 [HIGH] CWE-426 CVE-2026-70142: Untrusted search path in Windows Update Service allows an authorized attacker to elevate privileges Untrusted search path in Windows Update Service allows an authorized attacker to elevate privileges locally.