# CVE-2026-40340

> Vulnerability · severity: **MEDIUM** (CVSS 6.1).

## Description

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.

## Key facts

- **CVE ID:** CVE-2026-40340
- **Published:** 2026-04-18
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.1
- **CWE codes:** CWE-125

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40340

## Citation

> AI Analytics. CVE-2026-40340. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-40340. Derived from NIST NVD. Licensed CC0.

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