Microsoft Windows Server 2012 R2 vulnerabilities
2,572 known vulnerabilities affecting microsoft/windows_server_2012_r2.
Total CVEs
2,572
CISA KEV
96
actively exploited
Public exploits
54
Exploited in wild
85
Severity breakdown
CRITICAL85HIGH1805MEDIUM672LOW10
Vulnerabilities
Page 6 of 129
CVE-2026-21246HIGHCVSS 7.8≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
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-2026-21533HIGHCVSS 7.8KEV≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
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-2026-21235HIGHCVSS 7.3≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
CVE-2026-21235 [HIGH] CWE-416 CVE-2026-21235: Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges l
Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-21222MEDIUMCVSS 5.5≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
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 6.2KEV≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
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 3.3≥ 6.3.9600.0, < 6.3.9600.230222026-02-10
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-2026-20919HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
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-2026-20840HIGHCVSS 7.8≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
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-2026-20875HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
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-2026-20816HIGHCVSS 7.0≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20816 [HIGH] CWE-367 CVE-2026-20816: Time-of-check time-of-use (toctou) race condition in Windows Installer allows an authorized attacker
Time-of-check time-of-use (toctou) race condition in Windows Installer allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20869HIGHCVSS 7.0≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20869 [HIGH] CWE-362 CVE-2026-20869: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20849HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20849 [HIGH] CWE-807 CVE-2026-20849: Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacke
Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.
cvelistv5nvd
CVE-2026-20848HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20848 [HIGH] CWE-362 CVE-2026-20848: 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-2026-20843HIGHCVSS 7.8≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20843 [HIGH] CWE-284 CVE-2026-20843: Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized att
Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20860HIGHCVSS 7.8≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20860 [HIGH] CWE-843 CVE-2026-20860: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20926HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20926 [HIGH] CWE-362 CVE-2026-20926: 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-2026-20921HIGHCVSS 7.5≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20921 [HIGH] CWE-362 CVE-2026-20921: 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-2026-20940HIGHCVSS 7.8≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20940 [HIGH] CWE-822 CVE-2026-20940: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker t
Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20831HIGHCVSS 7.0≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20831 [HIGH] CWE-367 CVE-2026-20831: Time-of-check time-of-use (toctou) race condition in Windows Ancillary Function Driver for WinSock a
Time-of-check time-of-use (toctou) race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
cvelistv5nvd
CVE-2026-20856HIGHCVSS 8.1≥ 6.3.9600.0, < 6.3.9600.229682026-01-13
CVE-2026-20856 [HIGH] CWE-20 CVE-2026-20856: Improper input validation in Windows Server Update Service allows an unauthorized attacker to execut
Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
cvelistv5nvd