CVE-2026-24283

Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability

CVE-2026-24283 is fixed in 9 products on 1 platform, first by KB5079473, released March 10, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0043

37th percentile

<p>Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 24H2 for ARM64-based Systems		KB5079473	Mar 10, 2026
Windows 11 Version 24H2 for ARM64-based Systems		KB5079420	Mar 10, 2026
Windows 11 Version 24H2 for x64-based Systems		KB5079473	Mar 10, 2026
Windows 11 Version 24H2 for x64-based Systems		KB5079420	Mar 10, 2026
Windows 11 Version 25H2 for ARM64-based Systems		KB5079473	Mar 10, 2026
Windows 11 Version 25H2 for ARM64-based Systems		KB5079420	Mar 10, 2026
Windows 11 Version 25H2 for x64-based Systems		KB5079473	Mar 10, 2026
Windows 11 Version 25H2 for x64-based Systems		KB5079420	Mar 10, 2026
Windows 11 Version 26H1 for ARM64-based Systems	28000.1719	KB5079466	Mar 10, 2026
Windows 11 version 26H1 for x64-based Systems	28000.1719	KB5079466	Mar 10, 2026
Windows Server 2022, 23H2 Edition (Server Core installation)	25398.2207	KB5078734	Mar 10, 2026
Windows Server 2025	26100.32463	KB5078736	Mar 10, 2026
Windows Server 2025	26100.32522	KB5078740	Mar 10, 2026
Windows Server 2025 (Server Core installation)	26100.32463	KB5078736	Mar 10, 2026
Windows Server 2025 (Server Core installation)	26100.32522	KB5078740	Mar 10, 2026

Details

Published
March 10, 2026
Weakness
Heap-based Buffer Overflow
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24283

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