Disclosure summary
Use After Free vulnerability was discovered in fs/vfs/fs_rename code of the Apache NuttX RTOS, that due recursive implementation and single buffer use by two different pointer variables allowed arbitrary user provided size buffer reallocation and write to the previously freed heap chunk, that in specific cases could cause unintended virtual filesystem rename/move operation results. This issue affects Apache NuttX RTOS: from 7.20 before 12.11.0. Users of virtual filesystem based services with write access especially when exposed over the network (i.e. FTP) are affected and recommended to upgrade to version 12.11.0 that fixes the issue.
Source-reported weakness categories
CWE-416
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-48769
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| apache | nuttx | * {"versionStartIncluding":"7.20","versionEndExcluding":"12.11.0"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Issue Tracking
- lists.apache.org — Mailing List, Vendor Advisory
PUBLISHED 2026-01-01T12:15:43-05:00
MODIFIED 2026-10-07T07:10:00-04:00
INGESTED 2026-10-08T12:40:11-04:00