uTox through 0.18.1 contains a path traversal vulnerability that allows Tox friends to write arbitrary files by sending absolute or ../ file names to victims with auto-accept enabled. Attackers can overwrite shell startup files or plant crafted .ftinfo resume records that ft_find_resumeable() loads, abusing FILE pointers to write /proc/self/mem and execute code.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusPublished → DeferredNVD modified 2026-10-20 20:11
- StatusReceived → PublishedNVD modified 2026-10-20 13:43
- StatusPublished → ReceivedNVD modified 2026-10-20 14:16
- StatusReceived → PublishedNVD modified 2026-10-20 10:41
- First seenCVSS 7.7NVD modified 2026-10-20 11:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- https://github.com/uTox/uTox
- https://github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/file_transfers.c#L249-L290
- https://github.com/uTox/uTox/blob/4b014491560c884b556f082d4d34c5229228bbc5/src/xlib/filesys.c#L191-L214
- https://github.com/uTox/uTox/issues/1587
- https://github.com/uTox/uTox/pull/1602
- https://github.com/uTox/uTox/pull/1603
- https://www.vulncheck.com/advisories/utox-through-0.18.1-path-traversal-via-auto-accepted-file-transfers