Microsoft Windows Server 2025 vulnerabilities
1,143 known vulnerabilities affecting microsoft/windows_server_2025.
Total CVEs
1,143
CISA KEV
36
actively exploited
Public exploits
16
Exploited in wild
5
Severity breakdown
CRITICAL14HIGH797MEDIUM327LOW5
Vulnerabilities
Page 10 of 58
CVE-2026-21250HIGHCVSS 7.8fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21250 [HIGH] CWE-822 CVE-2026-21250: Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privilege
Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-21238HIGHCVSS 7.8fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21238 [HIGH] CWE-284 CVE-2026-21238: Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attack
Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-21246HIGHCVSS 7.8fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21246 [HIGH] CWE-122 CVE-2026-21246: Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate
Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-21247HIGHCVSS 7.3fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21247 [HIGH] CWE-20 CVE-2026-21247: Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
cvelistv5nvd
CVE-2026-21533HIGHCVSS 7.8KEVfixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
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.
cvelistv5nvd
CVE-2026-21234HIGHCVSS 7.0fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21234 [HIGH] CWE-362 CVE-2026-21234: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-21222MEDIUMCVSS 5.5fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21222 [MEDIUM] CWE-532 CVE-2026-21222: Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
cvelistv5nvd
CVE-2026-21525MEDIUMCVSS 6.2KEVfixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
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.
cvelistv5nvd
CVE-2026-21249LOWCVSS 3.3fixed in 10.0.26100.32313≥ 10.0.26100.0, < 10.0.26100.323702026-02-10
CVE-2026-21249 [LOW] CWE-73 CVE-2026-21249: 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 locally.
cvelistv5nvd
CVE-2026-20836HIGHCVSS 7.0fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20836 [HIGH] CWE-362 CVE-2026-20836: Concurrent execution using shared resource with improper synchronization ('race condition') in Graph
Concurrent execution using shared resource with improper synchronization ('race condition') in Graphics Kernel allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20919HIGHCVSS 7.5fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20919 [HIGH] CWE-362 CVE-2026-20919: 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 elevate privileges over a network.
cvelistv5nvd
CVE-2026-20864HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20864 [HIGH] CWE-122 CVE-2026-20864: Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attac
Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20840HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20840 [HIGH] CWE-122 CVE-2026-20840: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
cvelistv5nvd
CVE-2026-20826HIGHCVSS 7.0fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20826 [HIGH] CWE-362 CVE-2026-20826: Concurrent execution using shared resource with improper synchronization ('race condition') in Table
Concurrent execution using shared resource with improper synchronization ('race condition') in Tablet Windows User Interface (TWINUI) Subsystem allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20865HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20865 [HIGH] CWE-416 CVE-2026-20865: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20875HIGHCVSS 7.5fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20875 [HIGH] CWE-476 CVE-2026-20875: Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an una
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
cvelistv5nvd
CVE-2026-20844HIGHCVSS 7.4fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20844 [HIGH] CWE-362 CVE-2026-20844: Use after free in Windows Clipboard Server allows an unauthorized attacker to elevate privileges loc
Use after free in Windows Clipboard Server allows an unauthorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20858HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20858 [HIGH] CWE-362 CVE-2026-20858: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20874HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20874 [HIGH] CWE-362 CVE-2026-20874: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20941HIGHCVSS 7.8fixed in 10.0.26100.32230≥ 10.0.26100.0, < 10.0.26100.322302026-01-13
CVE-2026-20941 [HIGH] CWE-59 CVE-2026-20941: 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.
cvelistv5nvd