CVE-2026-40335

MEDIUM

5.2

Description

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_DPV()` in `camlibs/ptp2/ptp-pack.c` (lines 622–629). The UINT128 and INT128 cases advance `*offset += 16` without verifying that 16 bytes remain in the buffer. The entry check at line 609 only guarantees `*offset < total` (at least 1 byte available), leaving up to 15 bytes unvalidated. Commit 433bde9888d70aa726e32744cd751d7dbe94379a patches the issue.

CVE Details

CVSS v3.1 Score5.2

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

Attack VectorPHYSICAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/18/2026

Last Modified4/18/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-125

References

https://github.com/gphoto/libgphoto2/commit/433bde9888d70aa726e32744cd751d7dbe94379a(security-advisories@github.com)

https://github.com/gphoto/libgphoto2/security/advisories/GHSA-g4g5-c2x9-cqfj(security-advisories@github.com)

IOC Correlations

No correlations recorded

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