Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-26176 [HIGH] CWE-122 CVE-2026-26176: Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized atta Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-61924 [HIGH] CWE-125 CVE-2026-61924: Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

CVE-2026-61918 [HIGH] CWE-125 CVE-2026-61918: Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

CVE-2026-50504 [HIGH] CWE-126 CVE-2026-50504: Buffer over-read in Remote Desktop Client allows an unauthorized attacker to disclose information ov Buffer over-read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

CVE-2026-50497 [HIGH] CWE-193 CVE-2026-50497: Off-by-one error in Windows Remote Desktop Protocol allows an unauthorized attacker to disclose info Off-by-one error in Windows Remote Desktop Protocol allows an unauthorized attacker to disclose information over a network.

CVE-2026-42992 [HIGH] CWE-122 CVE-2026-42992: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-44799 [HIGH] CWE-122 CVE-2026-44799: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-42993 [HIGH] CWE-122 CVE-2026-42993: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-32161 [HIGH] CWE-362 CVE-2026-32161: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Native WiFi Miniport Driver allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-87713 [HIGH] CWE-416 CVE-2026-87713: Use after free in Windows Bluetooth Port Driver allows an unauthorized attacker to elevate privilege Use after free in Windows Bluetooth Port Driver allows an unauthorized attacker to elevate privileges over an adjacent network.

CVE-2026-69906 [HIGH] CWE-122 CVE-2026-69906: Heap-based buffer overflow in Windows Secure Kernel Mode allows an authorized attacker to elevate pr Heap-based buffer overflow in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

CVE-2026-72962 [HIGH] CWE-122 CVE-2026-72962: Heap-based buffer overflow in Windows USB Video Driver allows an authorized attacker to elevate priv Heap-based buffer overflow in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-69365 [HIGH] CWE-125 CVE-2026-69365: Out-of-bounds read in Microsoft Local Security Authority Server (lsasrv) allows an authorized attack Out-of-bounds read in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges over a network.

CVE-2026-96844 [HIGH] CWE-191 CVE-2026-96844: Integer underflow (wrap or wraparound) in Microsoft Bluetooth Driver allows an authorized attacker t Integer underflow (wrap or wraparound) in Microsoft Bluetooth Driver allows an authorized attacker to elevate privileges over an adjacent network.

CVE-2026-25181 [HIGH] CWE-125 CVE-2026-25181: Out-of-bounds read in Windows GDI+ allows an unauthorized attacker to disclose information over a ne Out-of-bounds read in Windows GDI+ allows an unauthorized attacker to disclose information over a network.

CVE-2026-69783 [HIGH] CWE-73 CVE-2026-69783: External control of file name or path in Windows Update allows an authorized attacker to elevate pri External control of file name or path in Windows Update allows an authorized attacker to elevate privileges locally.

CVE-2026-32183 [HIGH] CWE-77 CVE-2026-32183: Improper neutralization of special elements used in a command ('command injection') in Windows Snipp Improper neutralization of special elements used in a command ('command injection') in Windows Snipping Tool allows an unauthorized attacker to execute code locally.

CVE-2026-88133 [HIGH] CWE-59 CVE-2026-88133: Improper authorization in Windows Portable Device Enumerator Service allows an authorized attacker t Improper authorization in Windows Portable Device Enumerator Service allows an authorized attacker to elevate privileges locally.

CVE-2026-96911 [HIGH] CWE-59 CVE-2026-96911: Improper link resolution before file access ('link following') in Microsoft Windows Search Component Improper link resolution before file access ('link following') in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-70163 [HIGH] CWE-770 CVE-2026-70163: Allocation of resources without limits or throttling in OpenSSH for Windows allows an unauthorized a Allocation of resources without limits or throttling in OpenSSH for Windows allows an unauthorized attacker to deny service over a network.