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CVE-2026-40334 (GCVE-0-2026-40334)

Vulnerability from cvelistv5 – Published: 2026-04-17 23:16 – Updated: 2026-04-20 13:36
VLAI
Title
libgphoto2 missing null termination in ptp_unpack_Canon_FE() filename buffer in ptp-pack.c
Summary
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.
Severity
3.5 (Low)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-20 13:27 UTC
CWE
  • CWE-170 - Improper Null Termination
Assigner
References
Impacted products
Vendor Product Version CPE status
gphoto libgphoto2 Affected: <= 2.5.33
guessed Create a notification for this product.
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