PT-2026-33524 · Gphotos · Libgphoto2

Published 2026-04-17 · Updated 2026-04-18 · CVE-2026-40334

NVD

CVSS v3.1

3.5

Low

AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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.

Fix

Weakness Enumeration

CWE-170

Related Identifiers

CVE-2026-40334

Affected Products

Libgphoto2

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-40334 · Security Note
• https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm · Note
• https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670ab873 · Note