CVE-2025-48769: 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…

PriorityP358high8.1CVSS 3.1

AVNACLPRLUINSUCNIHAH

EPSS

1.51%

71.5th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
apache	nuttx	>= 7.20 < 12.11.0	12.11.0
apache_software_foundation	apache_nuttx_rtos	>= 7.20 < 12.11.0	12.11.0

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.