Local code execution via heap-based buffer overflow
Published Mar 11, 2025 · Updated Feb 13, 2026
Heap-based buffer overflow in Microsoft Windows exFAT File System allows local users to execute arbitrary code after user interaction. Microsoft has not disclosed the affected parsing routine, the malformed input field, or the operation that overwrites heap memory. Exploitation requires user interaction on an affected Windows system and can compromise code execution, data, and system availability.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows exFAT File System allows local users to execute arbitrary code after user interaction. Microsoft has not disclosed the affected parsing routine, the malformed input field, or the operation that overwrites heap memory. Exploitation requires user interaction on an affected Windows system and can compromise code execution, data, and system availability.
The record
- CVE
- CVE-2025-21180
- Published
- Mar 11, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-122
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 11, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.20947
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo