Microsoft Windows Server 2025 vulnerabilities

CVE-2025-24984 [MEDIUM] CWE-532 CVE-2025-24984: Insertion of sensitive information into log file in Windows NTFS allows an unauthorized attacker to Insertion of sensitive information into log file in Windows NTFS allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-41089 [CRITICAL] CWE-121 CVE-2026-41089: Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.

CVE-2024-43451 [MEDIUM] CWE-73 NTLM Hash Disclosure Spoofing Vulnerability NTLM Hash Disclosure Spoofing Vulnerability NTLM Hash Disclosure Spoofing Vulnerability

CVE-2025-24071 [MEDIUM] CWE-200 CVE-2025-24071: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauth Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauthorized attacker to perform spoofing over a network.

CVE-2020-17103 [HIGH] CWE-269 CVE-2020-17103: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

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-2025-24061 [HIGH] CWE-693 CVE-2025-24061: Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to by Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature locally.

CVE-2025-21293 [HIGH] CWE-284 CVE-2025-21293: Active Directory Domain Services Elevation of Privilege Vulnerability Active Directory Domain Services Elevation of Privilege Vulnerability

CVE-2024-49112 [CRITICAL] CWE-190 CVE-2024-49112: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

CVE-2025-53778 [HIGH] CWE-287 CVE-2025-53778: Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a n Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.

CVE-2025-50154 [MEDIUM] CWE-200 CVE-2025-50154: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauth Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauthorized attacker to perform spoofing over a network.

CVE-2025-47981 [CRITICAL] CWE-122 CVE-2025-47981: Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.

CVE-2025-47987 [HIGH] CWE-122 CVE-2025-47987: Heap-based buffer overflow in Windows Cred SSProvider Protocol allows an authorized attacker to elev Heap-based buffer overflow in Windows Cred SSProvider Protocol 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-2025-54918 [HIGH] CWE-287 CVE-2025-54918: Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a n Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.

CVE-2025-55234 [CRITICAL] CWE-287 CVE-2025-55234: SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who suc SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extend

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.

CVE-2026-21248 [HIGH] CWE-122 CVE-2026-21248: 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.