Microsoft Windows 11 Version 26H1 vulnerabilities

CVE-2026-70247 [HIGH] CWE-125 CVE-2026-70247: Out-of-bounds read in Windows HTTP.sys allows an authorized attacker to execute code locally. Out-of-bounds read in Windows HTTP.sys allows an authorized attacker to execute code locally.

CVE-2026-83583 [HIGH] CWE-862 CVE-2026-83583: Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally.

CVE-2026-24287 [HIGH] CWE-73 CVE-2026-24287: External control of file name or path in Windows Kernel allows an authorized attacker to elevate pri External control of file name or path in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83670 [HIGH] CWE-125 CVE-2026-83670: Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disc Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.

CVE-2026-83918 [HIGH] CWE-190 CVE-2026-83918: Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83498 [HIGH] CWE-822 CVE-2026-83498: Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an autho Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVE-2026-69725 [HIGH] CWE-415 CVE-2026-69725: Double free in Windows Hello allows an authorized attacker to elevate privileges locally. Double free in Windows Hello allows an authorized attacker to elevate privileges locally.

CVE-2026-83968 [HIGH] CWE-400 CVE-2026-83968: Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges loca Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69584 [HIGH] CWE-190 CVE-2026-69584: Integer overflow or wraparound in Windows USB Video Driver allows an authorized attacker to elevate Integer overflow or wraparound in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-69585 [HIGH] CWE-704 CVE-2026-69585: Incorrect type conversion or cast in Microsoft Windows Search Component allows an authorized attacke Incorrect type conversion or cast in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-83979 [HIGH] CWE-416 CVE-2026-83979: Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges loca Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-68832 [HIGH] CWE-190 CVE-2026-68832: Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges l Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-72965 [HIGH] CWE-416 CVE-2026-72965: Use after free in Windows WebClient Service allows an authorized attacker to elevate privileges loca Use after free in Windows WebClient Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69269 [HIGH] CWE-191 CVE-2026-69269: Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an authorized attacker to el Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.

CVE-2026-69475 [HIGH] CWE-822 CVE-2026-69475: Untrusted pointer dereference in Windows Remote Desktop Services allows an authorized attacker to el Untrusted pointer dereference in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.

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-2026-56198 [HIGH] CWE-125 CVE-2026-56198: Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privilege Out-of-bounds read in Microsoft Trace Data Helper 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-2026-69538 [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.