CVE-2024-49093

Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability

CVE-2024-49093 is fixed in 4 products on 1 platform, first by KB5048794, released December 10, 2024. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent

CVSS

8.8

Important

Exploitation

More likely

Vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0094

61st percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 24H2 for ARM64-based Systems	26100.2528	KB5048794	Dec 10, 2024
Windows 11 Version 24H2 for ARM64-based Systems	26100.2605	KB5048667	Dec 10, 2024
Windows 11 Version 24H2 for x64-based Systems	26100.2528	KB5048794	Dec 10, 2024
Windows 11 Version 24H2 for x64-based Systems	26100.2605	KB5048667	Dec 10, 2024
Windows Server 2025	26100.2528	KB5048794	Dec 10, 2024
Windows Server 2025	26100.2605	KB5048667	Dec 10, 2024
Windows Server 2025 (Server Core installation)	26100.2528	KB5048794	Dec 10, 2024
Windows Server 2025 (Server Core installation)	26100.2605	KB5048667	Dec 10, 2024

Details

Published
December 10, 2024
Weakness
Incorrect Conversion between Numeric Types
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49093

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