Windows DWM Core Library 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

KB5087539 (Security Update) — fixed build 10.0.26100.32860 KB5087423 (Security Hotpatch Update) — fixed build 10.0.26100.32772 KB5089549 (Security Update) — fixed build 10.0.26200.8457 KB5089466 (Security Hotpatch Update) — fixed build 10.0.26200.8390 KB5089549 (Security Update) — fixed build 10.0.26100.8457 KB5089466 (Security Hotpatch Update) — fixed build 10.0.26100.8390 KB5089548 (Security Update) — fixed build 10.0.28000.2113

🔗 References (11)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42896
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087539
• referencehttps://support.microsoft.com/help/5087539
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087423
• referencehttps://support.microsoft.com/help/5087423
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089549
• referencehttps://support.microsoft.com/help/5089549
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089466
• referencehttps://support.microsoft.com/help/5089466
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5089548
• referencehttps://support.microsoft.com/help/5089548