Windows Server 2012 R2 CVEs and Security Vulnerabilities

CVE-2026-45595

Windows Mark of the Web Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 22 more

CVE-2026-45596

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-45599

Windows UPnP Device Host Remote Code Execution Vulnerability

Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-47288

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.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows Server 2012 Windows Server 2012 (server Core Installation) Windows Server 2012 R2 and 9 more

CVE-2026-47291

HTTP.sys Remote Code Execution Vulnerability

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

CVSS 3.1 · 9.8 Critical EPSS 25.3% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-34335

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-47648

Windows Storage Elevation of Privilege Vulnerability

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

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-47656

Windows Boot Manager Security Feature Bypass Vulnerability

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

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-48568

Secure Boot Security Feature Bypass Vulnerability

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

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-48570

Secure Boot Security Feature Bypass Vulnerability

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

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-48574

Windows Media Remote Code Execution Vulnerability

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

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-48575

Secure Boot Security Feature Bypass Vulnerability

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

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more

CVE-2026-45639

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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Remote Desktop Remote Desktop Client Windows 10 1607 and 27 more

CVE-2026-42908

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.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more

CVE-2026-50508

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.

CVSS 3.1 · 6.5 Medium EPSS 11.4% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1607 Windows 11 22h2 Windows 11 22h2 and 9 more

CVE-2026-44803

Windows Graphics Component Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Excel Powerpoint Windows 10 1607 and 26 more

CVE-2026-44812

Windows Graphics Component Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

Excel Powerpoint Windows 10 1607 and 26 more

CVE-2024-49128

Windows Remote Desktop Services Remote Code Execution Vulnerability

Sensitive data storage in improperly locked memory in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.1 High EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 and 5 more

CVE-2024-49120

Windows Remote Desktop Services Remote Code Execution Vulnerability

CVSS 3.1 · 8.1 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 and 5 more

CVE-2024-49127

Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

CVSS 3.1 · 8.1 High EPSS 1.3% KEV · Not listed

Vendors

Microsoft

Products

Windows 10 1507 Windows 10 1607 Windows 10 1809 and 21 more

Search vulnerabilities

Windows Mark of the Web Security Feature Bypass Vulnerability

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Windows UPnP Device Host Remote Code Execution Vulnerability

Windows Kerberos Key Distribution Center (KDC) Remote Code Execution

HTTP.sys Remote Code Execution Vulnerability

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Windows Storage Elevation of Privilege Vulnerability

Windows Boot Manager Security Feature Bypass Vulnerability

Secure Boot Security Feature Bypass Vulnerability

Secure Boot Security Feature Bypass Vulnerability

Windows Media Remote Code Execution Vulnerability

Secure Boot Security Feature Bypass Vulnerability

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Windows NTLM Spoofing Vulnerability

Windows Graphics Component Remote Code Execution Vulnerability

Windows Graphics Component Remote Code Execution Vulnerability

Windows Remote Desktop Services Remote Code Execution Vulnerability

Windows Remote Desktop Services Remote Code Execution Vulnerability

Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability