Microsoft Windows Server 2012 R2 vulnerabilities

4,059 known vulnerabilities affecting microsoft/windows_server_2012_r2.

Total CVEs

4,059

CISA KEV

101

actively exploited

Public exploits

Exploited in wild

135

Severity breakdown

CRITICAL179HIGH2842MEDIUM1026LOW12

Vulnerabilities

SortPage 5 of 203

CVE-2025-21418P1HIGHCVSS 7.8KEV≥ 6.3.9600.0, < 6.3.9600.224172025-02-11

CVE-2025-21418 [HIGH] CWE-122 CVE-2025-21418: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

nvd

CVE-2022-41033P1HIGHCVSS 7.8KEV≥ 6.3.9600.0, < 6.3.9600.206252022-10-11

CVE-2022-41033 [HIGH] CWE-843 CVE-2022-41033: Windows COM+ Event System Service Elevation of Privilege Vulnerability Windows COM+ Event System Service Elevation of Privilege Vulnerability

nvd

CVE-2026-21525P1MEDIUMCVSS 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.

nvd

CVE-2024-38217P2MEDIUMCVSS 5.4KEV≥ 6.3.9600.0, < 6.3.9600.221752024-09-10

CVE-2024-38217 [MEDIUM] CWE-693 CVE-2024-38217: Windows Mark of the Web Security Feature Bypass Vulnerability Windows Mark of the Web Security Feature Bypass Vulnerability

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CVE-2021-31199P1HIGHCVSS 7.8KEV≥ 6.3.0, < 6.3.9600.20045≥ 6.3.0, < 6.3.9600.200442021-06-08

CVE-2021-31199 [HIGH] CVE-2021-31199: Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability

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CVE-2021-31201P1HIGHCVSS 7.8KEV≥ 6.3.0, < 6.3.9600.20045≥ 6.3.0, < 6.3.9600.200442021-06-08

CVE-2021-31201 [HIGH] CVE-2021-31201: Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability

nvd

CVE-2023-36584P2MEDIUMCVSS 5.4KEV≥ 6.3.9600.0, < 6.3.9600.216202023-10-10

CVE-2023-36584 [MEDIUM] CVE-2023-36584: Windows Mark of the Web Security Feature Bypass Vulnerability Windows Mark of the Web Security Feature Bypass Vulnerability

nvd

CVE-2023-36563P2MEDIUMCVSS 5.5KEV≥ 6.3.9600.0, < 6.3.9600.216202023-10-10

CVE-2023-36563 [MEDIUM] CWE-20 CVE-2023-36563: Microsoft WordPad Information Disclosure Vulnerability Microsoft WordPad Information Disclosure Vulnerability

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CVE-2025-24991P2MEDIUMCVSS 5.5KEV≥ 6.3.9600.0, < 6.3.9600.224702025-03-11

CVE-2025-24991 [MEDIUM] CWE-125 CVE-2025-24991: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

nvd

CVE-2025-24984P2MEDIUMCVSS 4.6KEV≥ 6.3.9600.0, < 6.3.9600.224702025-03-11

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.

nvd

CVE-2026-41089P1CRITICALCVSS 9.8ExploitedPoC≥ 6.3.9600.0, < 6.3.9600.231812026-05-12

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.

nvd

CVE-2022-26809P1CRITICALCVSS 9.8ExploitedPoCRansomware≥ 6.3.9600.0, < 6.3.9600.203372022-04-15

CVE-2022-26809 [CRITICAL] CVE-2022-26809: Remote Procedure Call Runtime Remote Code Execution Vulnerability Remote Procedure Call Runtime Remote Code Execution Vulnerability

nvd

CVE-2022-34721P1CRITICALCVSS 9.8ExploitedPoC≥ 6.3.9600.0, < 6.3.9600.205712022-09-13

CVE-2022-34721 [CRITICAL] CVE-2022-34721: Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability

nvd

CVE-2022-30136P1CRITICALCVSS 9.8ExploitedPoC≥ 6.3.9600.0, < 6.3.9600.204022022-06-15

CVE-2022-30136 [CRITICAL] CVE-2022-30136: Windows Network File System Remote Code Execution Vulnerability Windows Network File System Remote Code Execution Vulnerability

nvd

CVE-2021-40449HIGHCVSS 7.8KEVPoCRansomware≥ 6.3.0, < 6.3.9600.201442021-10-13

CVE-2021-40449 [HIGH] Win32k Elevation of Privilege Vulnerability Win32k Elevation of Privilege Vulnerability Win32k Elevation of Privilege Vulnerability

cvelistv5

CVE-2024-43451MEDIUMCVSS 6.5KEVPoCRansomware≥ 6.3.9600.0, < 6.3.9600.222672024-11-12

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

cvelistv5

CVE-2021-36942HIGHCVSS 7.5KEVPoCRansomware≥ 6.3.0, < 6.3.9600.200942021-08-12

CVE-2021-36942 [HIGH] Windows LSA Spoofing Vulnerability Windows LSA Spoofing Vulnerability Windows LSA Spoofing Vulnerability

cvelistv5

CVE-2023-29336HIGHCVSS 7.8KEVPoC≥ 6.3.9600.0, < 6.3.9600.209692023-05-09

CVE-2023-29336 [HIGH] CWE-416 Win32k Elevation of Privilege Vulnerability Win32k Elevation of Privilege Vulnerability Win32k Elevation of Privilege Vulnerability

cvelistv5

CVE-2021-31956HIGHCVSS 7.8KEVPoC≥ 6.3.0, < 6.3.9600.20045≥ 6.3.0, < 6.3.9600.200442021-06-08

CVE-2021-31956 [HIGH] Windows NTFS Elevation of Privilege Vulnerability Windows NTFS Elevation of Privilege Vulnerability Windows NTFS Elevation of Privilege Vulnerability

cvelistv5

CVE-2019-1040P1MEDIUMCVSS 5.3ExploitedPoC≥ 6.3.9600.0, < publication2019-06-12

CVE-2019-1040 [MEDIUM] CVE-2019-1040: A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to s A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity Check) protection. An attacker who successfully exploited this vulnerability could gain the ability to downgrade NTLM security features. To exploit this vulnerability, the attacker would need to tamper with the

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