Microsoft Windows 11 25H2 vulnerabilities

CVE-2025-62215 [HIGH] CWE-362 CVE-2025-62215: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-32202 [MEDIUM] CWE-693 CVE-2026-32202: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing ov Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

CVE-2025-60710 [HIGH] CWE-59 CVE-2025-60710: Improper link resolution before file access ('link following') in Host Process for Windows Tasks all Improper link resolution before file access ('link following') in Host Process for Windows Tasks allows an authorized attacker to elevate privileges locally.

CVE-2025-24990 [HIGH] CWE-822 CVE-2025-24990: Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update. Fax modem hardware dependent on this specific driver will no longer work on Window

CVE-2026-20805 [MEDIUM] CWE-200 CVE-2026-20805: Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an auth Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

CVE-2026-21510 [HIGH] CWE-693 CVE-2026-21510: Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security f Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-21513 [HIGH] CWE-693 CVE-2026-21513: Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a securit Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-21533 [HIGH] CWE-269 CVE-2026-21533: Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate pri Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.

CVE-2025-62221 [HIGH] CWE-416 CVE-2025-62221: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-59230 [HIGH] CWE-284 CVE-2025-59230: Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-21519 [HIGH] CWE-843 CVE-2026-21519: Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an au Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-21525 [MEDIUM] CWE-476 CVE-2026-21525: Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.

CVE-2025-47827 [MEDIUM] CWE-347 CVE-2025-47827: In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly ve In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS image.

CVE-2026-25187 [HIGH] CWE-59 CVE-2026-25187: Improper link resolution before file access ('link following') in Winlogon allows an authorized atta Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.

CVE-2026-45586 [HIGH] CWE-59 CVE-2026-45586: Improper link resolution before file access ('link following') in Windows Collaborative Translation Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.

CVE-2026-20931 [HIGH] CWE-73 CVE-2026-20931: External control of file name or path in Windows Telephony Service allows an authorized attacker to External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.

CVE-2026-33824 [CRITICAL] CWE-415 CVE-2026-33824: Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network. Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.

CVE-2025-59254 [HIGH] CWE-122 CVE-2025-59254: Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate priv Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-47291 [CRITICAL] CWE-122 CVE-2026-47291: Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code o Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

CVE-2026-21244 [HIGH] CWE-122 CVE-2026-21244: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.