# CVE-2026-40334

> Vulnerability · severity: **LOW** (CVSS 3.5).

## 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.

## Key facts

- **CVE ID:** CVE-2026-40334
- **Published:** 2026-04-18
- **CVSS severity:** LOW
- **CVSS base score:** 3.5
- **CWE codes:** CWE-170

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40334

## Citation

> AI Analytics. CVE-2026-40334. Retrieved 2026-07-16 from https://api.ai-analytics.org/cve/CVE-2026-40334. Derived from NIST NVD. Licensed CC0.

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