Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-85365 [HIGH] CWE-122 CVE-2026-85365: Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privi Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-59116 [MEDIUM] CWE-327 CVE-2026-59116: Use of a broken or risky cryptographic algorithm in Windows Remote Desktop allows an unauthorized at Use of a broken or risky cryptographic algorithm in Windows Remote Desktop allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-57982 [MEDIUM] CWE-908 CVE-2026-57982: Use of uninitialized resource in Windows RDP allows an authorized attacker to disclose information o Use of uninitialized resource in Windows RDP allows an authorized attacker to disclose information over a network.

CVE-2026-97842 [MEDIUM] CWE-125 CVE-2026-97842: Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a networ Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

CVE-2026-87714 [MEDIUM] CWE-862 CVE-2026-87714: Missing authorization in WebDAV allows an authorized attacker to bypass a security feature over a ne Missing authorization in WebDAV allows an authorized attacker to bypass a security feature over a network.

CVE-2026-50302 [MEDIUM] CWE-295 CVE-2026-50302: Improper certificate validation in Windows Cryptographic Services allows an unauthorized attacker to Improper certificate validation in Windows Cryptographic Services allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-40414 [HIGH] CWE-476 CVE-2026-40414: Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an a Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network.

CVE-2026-26151 [HIGH] CWE-357 CVE-2026-26151: Insufficient ui warning of dangerous operations in Windows Remote Desktop allows an unauthorized att Insufficient ui warning of dangerous operations in Windows Remote Desktop allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-69305 [HIGH] CWE-416 CVE-2026-69305: 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 over a network.

CVE-2026-83566 [HIGH] CWE-416 CVE-2026-83566: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

CVE-2026-70241 [HIGH] CWE-416 CVE-2026-70241: Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally. Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.

CVE-2026-83924 [HIGH] CWE-416 CVE-2026-83924: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-69915 [HIGH] CWE-416 CVE-2026-69915: Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally. Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-70160 [HIGH] CWE-416 CVE-2026-70160: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-25171 [HIGH] CWE-416 CVE-2026-25171: Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.

CVE-2026-72963 [HIGH] CWE-416 CVE-2026-72963: Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privilege Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privileges locally.

CVE-2026-69281 [HIGH] CWE-416 CVE-2026-69281: Use after free in Windows License Manager allows an authorized attacker to elevate privileges locall Use after free in Windows License Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-69331 [HIGH] CWE-416 CVE-2026-69331: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-71342 [HIGH] CWE-416 CVE-2026-71342: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-71333 [HIGH] CWE-416 CVE-2026-71333: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.