Windows Kernel Elevation of Privilege Vulnerability

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products8

• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows 11 Version 25H2 for ARM64-based Systems
• Windows 11 Version 25H2 for x64-based Systems
• Windows 11 Version 26H1 for ARM64-based Systems
• Windows 11 version 26H1 for x64-based Systems
• Windows Server 2025
• Windows Server 2025 (Server Core installation)

✅ Remediation

KB5075899 (Security Update) — fixed build 10.0.26100.32370 KB5075942 (Security Hotpatch Update) — fixed build 10.0.26100.32313 KB5077181 (Security Update) — fixed build 10.0.26200.7840 KB5077212 (Security Hotpatch Update) — fixed build 10.0.26200.7781 KB5077181 (Security Update) — fixed build 10.0.26100.7840 KB5077212 (Security Hotpatch Update) — fixed build 10.0.26100.7781 KB5077179 (Security Update) — fixed build 10.0.28000.1575

🔗 References (11)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21245
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5075899
• referencehttps://support.microsoft.com/help/5075899
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5075942
• referencehttps://support.microsoft.com/help/5075942
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5077181
• referencehttps://support.microsoft.com/help/5077181
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5077212
• referencehttps://support.microsoft.com/help/5077212
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5077179
• referencehttps://support.microsoft.com/help/5077179