Microsoft Windows Server 2019 (Server Core installation) vulnerabilities
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Published CVEs affecting Microsoft Windows Server 2019 (Server Core installation): 2662 record(s), with affected versions and fixes.
CVE-2026-20918
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20877
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20875
High · 7.5
CWE-476 Jan 13, 2026
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
CVE-2026-20874
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20873
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20872
Medium · 6.5
CWE-73 Jan 13, 2026
NTLM Hash Disclosure Spoofing Vulnerability
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-20869
High · 7.0
CWE-362 Jan 13, 2026
Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally.
CVE-2026-20868
High · 8.8
CWE-122 Jan 13, 2026
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
CVE-2026-20867
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20866
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20865
High · 7.8
CWE-416 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20864
High · 7.8
CWE-122 Jan 13, 2026
Windows Connected Devices Platform Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
CVE-2026-20862
Medium · 5.5
CWE-200 Jan 13, 2026
Windows Management Services Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Management Services allows an authorized attacker to disclose information locally.
CVE-2026-20861
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20860
High · 7.8
CWE-843 Jan 13, 2026
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-20858
High · 7.8
CWE-362 Jan 13, 2026
Windows Management Services Elevation of Privilege Vulnerability
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-20857
High · 7.8
CWE-822 Jan 13, 2026
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-20856
High · 8.1
CWE-20 Jan 13, 2026
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
CVE-2026-20852
High · 7.7
CWE-266 Jan 13, 2026
Windows Hello Tampering Vulnerability
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
CVE-2026-20849
High · 7.5
CWE-807 Jan 13, 2026
Windows Kerberos Elevation of Privilege Vulnerability
Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.
CVE-2026-20848
High · 7.5
CWE-362 Jan 13, 2026
Windows SMB Server Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-20847
Medium · 6.5
CWE-200 Jan 13, 2026
Microsoft Windows File Explorer Spoofing Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to perform spoofing over a network.
CVE-2026-20844
High · 7.4
CWE-362 Jan 13, 2026
Windows Clipboard Server Elevation of Privilege Vulnerability
Use after free in Windows Clipboard Server allows an unauthorized attacker to elevate privileges locally.
CVE-2026-20843
High · 7.8
CWE-284 Jan 13, 2026
Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
CVE-2026-20840
High · 7.8
CWE-122 Jan 13, 2026
Windows NTFS Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.