CVE-2026-96223HighCVSS 7.8
Windows Hyper-V Elevation of Privilege Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
🎯 Affected products10
- 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 26H2 for ARM64-based Systems
- Windows 11 Version 26H2 for x64-based Systems
- Windows 11 version 26H1 for x64-based Systems
- Windows Server 2025
- Windows Server 2025 (Server Core installation)
✅ Remediation
KB5127648 (Security Update) — fixed build 10.0.26300.9711 KB5126646 (Security Update) — fixed build 10.0.26100.33650 KB5127648 (Security Update) — fixed build 10.0.26200.9711 KB5127648 (Security Update) — fixed build 10.0.26100.9711 KB5127646 (Security Update) — fixed build 10.0.28000.3231
🔗 References (7)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96223
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5127648
- referencehttps://support.microsoft.com/help/5127648
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5126646
- referencehttps://support.microsoft.com/help/5126646
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5127646
- referencehttps://support.microsoft.com/help/5127646