Microsoft Windows Server 2019 vulnerabilities

CVE-2026-20834 [MEDIUM] CWE-36 CVE-2026-20834: Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a Absolute path traversal in Windows Shell allows an unauthorized attacker to perform spoofing with a physical attack.

CVE-2026-20823 [MEDIUM] CWE-200 CVE-2026-20823: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an author Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

CVE-2026-20839 [MEDIUM] CWE-284 CVE-2026-20839: Improper access control in Windows Client-Side Caching (CSC) Service allows an authorized attacker t Improper access control in Windows Client-Side Caching (CSC) Service allows an authorized attacker to disclose information locally.

CVE-2026-20824 [MEDIUM] CWE-693 CVE-2026-20824: Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass a security feature locally.

CVE-2026-20939 [MEDIUM] CWE-200 CVE-2026-20939: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an author Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

CVE-2026-20847 [MEDIUM] CWE-200 CVE-2026-20847: Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized att Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to perform spoofing over a network.

CVE-2026-20829 [MEDIUM] CWE-125 CVE-2026-20829: Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally. Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.

CVE-2026-20818 [MEDIUM] CWE-532 CVE-2026-20818: Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker t Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.

CVE-2026-20833 [MEDIUM] CWE-327 CVE-2026-20833: Use of a broken or risky cryptographic algorithm in Windows Kerberos allows an authorized attacker t Use of a broken or risky cryptographic algorithm in Windows Kerberos allows an authorized attacker to disclose information locally.

CVE-2026-20962 [MEDIUM] CWE-908 CVE-2026-20962: Use of uninitialized resource in Dynamic Root of Trust for Measurement (DRTM) allows an authorized a Use of uninitialized resource in Dynamic Root of Trust for Measurement (DRTM) allows an authorized attacker to disclose information locally.

CVE-2026-20872 [MEDIUM] CWE-73 CVE-2026-20872: External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spo External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-20812 [MEDIUM] CWE-20 CVE-2026-20812: Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authoriz Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network.

CVE-2026-20936 [MEDIUM] CWE-125 CVE-2026-20936: Out-of-bounds read in Windows NDIS allows an authorized attacker to disclose information with a phys Out-of-bounds read in Windows NDIS allows an authorized attacker to disclose information with a physical attack.

CVE-2026-20827 [MEDIUM] CWE-200 CVE-2026-20827: Exposure of sensitive information to an unauthorized actor in Tablet Windows User Interface (TWINUI) Exposure of sensitive information to an unauthorized actor in Tablet Windows User Interface (TWINUI) Subsystem allows an authorized attacker to disclose information locally.

CVE-2026-20927 [MEDIUM] CWE-362 CVE-2026-20927: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

CVE-2026-20828 [MEDIUM] CWE-125 CVE-2026-20828: Out-of-bounds read in Windows Internet Connection Sharing (ICS) allows an unauthorized attacker to d Out-of-bounds read in Windows Internet Connection Sharing (ICS) allows an unauthorized attacker to disclose information with a physical attack.

CVE-2025-62458 [HIGH] CWE-122 CVE-2025-62458: Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2025-62571 [HIGH] CWE-20 CVE-2025-62571: Improper input validation in Windows Installer allows an authorized attacker to elevate privileges l Improper input validation in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2025-59516 [HIGH] CWE-73 CVE-2025-59516: Missing authentication for critical function in Windows Storage VSP Driver allows an authorized atta Missing authentication for critical function in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-64680 [HIGH] CWE-122 CVE-2025-64680: 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.