CVE-2026-24283HighCVSS 8.8
Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.
🎯 Affected products9
- 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, 23H2 Edition (Server Core installation)
- Windows Server 2025
- Windows Server 2025 (Server Core installation)
✅ Remediation
KB5079466 (Security Update) — fixed build 10.0.28000.1719 KB5078740 (Security Update) — fixed build 10.0.26100.32522 KB5078736 (Security Hotpatch Update) — fixed build 10.0.26100.32463 KB5079473 (Security Update) — fixed build 10.0.26200.8037 KB5079420 (Security Hotpatch Update) — fixed build 10.0.26200.7979 KB5078734 (Security Update) — fixed build 10.0.25398.2207 KB5079473 (Security Update) — fixed build 10.0.26100.8037 KB5079420 (Security Hotpatch Update) — fixed build 10.0.26100.7979
🔗 References (12)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24283
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5079466
- referencehttps://support.microsoft.com/help/5079466
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5078740
- referencehttps://support.microsoft.com/help/5078740
- referencehttps://support.microsoft.com/help/5078736
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5079473
- referencehttps://support.microsoft.com/help/5079473
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5079420
- referencehttps://support.microsoft.com/help/5079420
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5078734
- referencehttps://support.microsoft.com/help/5078734