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CVE-2025-24993

7.8
HIGHCVSS v3.1 Base Score
3.23%
LOW RiskEPSS (87th percentile)
KEV

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

Published: 3/11/2025
Modified: 10/27/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Microsoft Windows NTFS Heap-Based Buffer Overflow Vulnerability

Vendor / Product:

Microsoft Windows

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.

Due Date: 4/1/2025(OVERDUE)
Added to KEV:

3/11/2025

Notes:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24993 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24993

Vulnerability Summary

CVSS v3 Score

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

3.23%LOW Exploitation Risk
87th percentile

This vulnerability has a 3.23% probability of being exploited in the next 30 days, ranking higher than 87% of all scored CVEs.

CWE Classification

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Same Weakness Type(CWE-122)

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FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap-buffer-overflow occurs in drive read when a server-controlled read length is used to read file data into an IRP output stream buffer without a hard upper bound, allowing an oversized read to overwrite heap memory. This vulnerability is fixed in 3.20.1.

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Similar SeverityHIGH