CVE-2025-24985highunder attackCWE-122CWE-190

CVE-2025-24985: high-severity vulnerability in Microsoft Windows 10 Version 1507

Windows Fast FAT File System Driver Remote Code Execution Vulnerability

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71Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 7.8epss 3.9%
from disclosure to weapon22 days
Published on NVDMar 11
1st PoC+22d
CISA KEVMar 11
Action required by CISAfederal deadline: 2025-04-01

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

A flaw in Windows' FAT file system driver allows an attacker to execute malicious code on a computer through a specially crafted file. This happens because the driver doesn't properly check numeric values, which can cause it to allocate memory incorrectly.

Technical detail

An integer overflow vulnerability in the Windows Fast FAT Driver (CWE-122, CWE-190) enables local code execution when processing malformed FAT filesystem structures. The vulnerability requires local file system access but no user interaction, allowing an authenticated attacker to trigger memory corruption and achieve arbitrary code execution with elevated privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Affected products
Microsoft · Windows 10 Version 1507Microsoft · Windows 10 Version 1607Microsoft · Windows 10 Version 1809Microsoft · Windows 10 Version 21H2Microsoft · Windows 10 Version 22H2Microsoft · Windows 11 version 22H2Microsoft · Windows 11 version 22H3Microsoft · Windows 11 Version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows Server 2008 R2 Service Pack 1Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft · Windows Server 2008 Service Pack 2Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft · Windows Server 2012Microsoft · Windows Server 2012 R2Microsoft · Windows Server 2012 R2 (Server Core installation)Microsoft · Windows Server 2012 (Server Core installation)Microsoft · Windows Server 2016Microsoft · Windows Server 2016 (Server Core installation)Microsoft · Windows Server 2019Microsoft · Windows Server 2019 (Server Core installation)Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)
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