CVE-2025-24985

Published Mar 11, 2025

Last updated 3 months ago

Windows

Fast FAT Driver

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-24985 is a remote code execution vulnerability in the Windows Fast FAT File System Driver. An attacker could exploit this vulnerability by convincing a target to mount a specially crafted virtual hard disk (VHD). Successful exploitation allows the attacker to execute arbitrary code on the system. This vulnerability affects Windows 10, Windows Server 2019, Windows Server 2022, and likely other versions of Windows. It was reported to Microsoft and patched in March 2025. The Cybersecurity and Infrastructure Security Agency (CISA) has added this vulnerability to its Known Exploited Vulnerabilities Catalog as it has evidence of active exploitation. This vulnerability is caused by an integer overflow or wraparound within the Fast FAT Driver. Exploiting this vulnerability requires local access and user interaction. While technical details are not widely available, it's known that an exploit exists. Microsoft has released patches to address this vulnerability, and users are strongly encouraged to apply these patches as soon as possible.

Description: Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
Source: secure@microsoft.com
NVD status: Analyzed
Products: windows_10_1507, windows_10_1607, windows_10_1809, windows_10_21h2, windows_10_22h2, windows_11_22h2, windows_11_23h2, windows_11_24h2, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019, windows_server_2022, windows_server_2022_23h2, windows_server_2025

Risk scores

CVSS 3.1

Type: Secondary
Base score: 7.8
Impact score: 5.9
Exploitability score: 1.8
Vector string: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: Microsoft Windows Fast FAT File System Driver Integer Overflow Vulnerability
Exploit added on: Mar 11, 2025
Exploit action due: Apr 1, 2025
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

secure@microsoft.com: CWE-122
nvd@nist.gov: CWE-190

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.