CVE-2026-80083CriticalCVSS 8.8
Windows Hyper-V Remote Code Execution Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.
🎯 Affected products12
- Windows 11 Version 23H2 for ARM64-based Systems
- Windows 11 Version 23H2 for x64-based Systems
- 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 2022
- Windows Server 2022 (Server Core installation)
- Windows Server 2025
- Windows Server 2025 (Server Core installation)
✅ Remediation
KB5122882 (Security Update) — fixed build 10.0.20348.5622 KB5122871 (Security Update) — fixed build 10.0.26100.33438 KB5124008 (Security Update) — fixed build 10.0.26200.9445 KB5122880 (Security Update) — fixed build 10.0.22631.7582 KB5124008 (Security Update) — fixed build 10.0.26100.9445 KB5124012 (Security Update) — fixed build 10.0.28000.2954
🔗 References (11)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80083
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5122882
- referencehttps://support.microsoft.com/help/5122882
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5122871
- referencehttps://support.microsoft.com/help/5122871
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5124008
- referencehttps://support.microsoft.com/help/5124008
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5122880
- referencehttps://support.microsoft.com/help/5122880
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5124012
- referencehttps://support.microsoft.com/help/5124012