Vulnerability Description
libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670a
- https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm
FAQ
What is CVE-2026-40334?
CVE-2026-40334 is a vulnerability with a CVSS score of 3.5 (LOW). libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The functio...
How severe is CVE-2026-40334?
CVE-2026-40334 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40334?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.