Windows Server CVEs and Security Vulnerabilities

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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-2026-45657

Windows Kernel Remote Code Execution Vulnerability

Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 9.8 Critical EPSS 15.5% KEV · Not listed

Vendors

Microsoft

Products

Windows 11 23h2 Windows 11 23h2 Windows 11 24h2 and 8 more

CVE-2026-33828

Windows Device Health Attestation (DHA) Elevation of Privilege Vulnerability

Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges 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 18 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-2026-42828

Windows Projected File System Elevation of Privilege Vulnerability

Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 15 more

CVE-2026-42977

Windows Push Notifications Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 15 more

CVE-2026-42978

Windows Push Notifications Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

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

Vendors

Microsoft

Products

Windows 10 1809 Windows 10 21h2 Windows 10 21h2 and 15 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-2026-48583

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges 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 18 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

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