CVE-2025-48769High· 8.1▾ TwilightUse 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 realloc…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44.6 · likelihood 0.3 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
1.6%
Last analysed / modified upstream
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.
nuttx >= 7.20, < 12.11.0Upgrade past the affected range:
nuttx 12.11.0Connected by shared product, vendor, weakness, or advisory.
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