Microsoft Windows Server 2012 (Server Core installation) vulnerabilities

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Published CVEs affecting Microsoft Windows Server 2012 (Server Core installation): 1703 record(s), with affected versions and fixes.

CVE-2026-40378 High · 7.5 CWE-789 Jul 14, 2026

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

CVE-2026-34346 Medium · 5.5 CWE-319 Jul 14, 2026

Windows Ancillary Function Driver for WinSock Information Disclosure Vulnerability

Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.

CVE-2026-50508 High · 7.5 CWE-200 Jun 9, 2026

Windows NTLM Spoofing Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-48578 High · 7.9 CWE-284 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.

CVE-2026-48576 High · 7.9 CWE-1329 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-48575 High · 7.9 CWE-693 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-48574 High · 7.8 CWE-122 Jun 9, 2026

Windows Media Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.

CVE-2026-48573 High · 7.9 CWE-1329 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-48570 High · 7.9 CWE-693 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-48568 High · 7.9 CWE-693 Jun 9, 2026

Secure Boot Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-47656 High · 7.9 CWE-693 Jun 9, 2026

Windows Boot Manager Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally.

CVE-2026-47653 High · 8.8 CWE-787 Jun 9, 2026

Remote Desktop Client Remote Code Execution Vulnerability

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-47648 High · 7.0 CWE-426 Jun 9, 2026

Windows Storage Elevation of Privilege Vulnerability

Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-47291 Critical · 9.8 CWE-122 Jun 9, 2026

HTTP.sys Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

CVE-2026-47289 High · 8.8 CWE-122 Jun 9, 2026

Remote Desktop Client Remote Code Execution Vulnerability

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-47288 High · 7.1 CWE-190 Jun 9, 2026

Windows Kerberos Key Distribution Center (KDC) Remote Code Execution

Integer overflow or wraparound in Windows Kerberos allows an authorized attacker to execute code over an adjacent network.

CVE-2026-45658 Medium · 6.8 CWE-284 Jun 9, 2026

Windows BitLocker Security Feature Bypass Vulnerability

Improper access control in Windows BitLocker allows an authorized attacker to bypass a security feature locally.

CVE-2026-45656 High · 7.8 CWE-693 Jun 9, 2026

UEFI Secure Boot Security Feature Bypass Vulnerability

Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.

CVE-2026-45655 Medium · 5.3 CWE-693 Jun 9, 2026

Windows BitLocker Security Feature Bypass Vulnerability

Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-45653 High · 7.0 CWE-416 Jun 9, 2026

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-45642 Low · 3.9 CWE-20 Jun 9, 2026

Microsoft Azure Attestation service and Device Health Attestation Service Spoofing Vulnerability

Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Service allows an authorized attacker to perform spoofing with a physical attack.

CVE-2026-45639 High · 7.5 CWE-125 Jun 9, 2026

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.

CVE-2026-45638 High · 7.8 CWE-122 Jun 9, 2026

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-45636 High · 7.8 CWE-20 Jun 9, 2026

Windows NTFS Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

CVE-2026-45635 High · 8.1 CWE-416 Jun 9, 2026

Windows UPnP Device Host Remote Code Execution Vulnerability

Access of resource using incompatible type ('type confusion') in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.