PT-2026-33529 · Gphotos · Libgphoto2

Published 2026-04-17 · Updated 2026-04-18 · CVE-2026-40335

Mitre

CVSS v3.1

5.2

Medium

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

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.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-40335

Affected Products

Libgphoto2

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-40335 · Security Note
• https://github.com/gphoto/libgphoto2/security/advisories/GHSA-g4g5-c2x9-cqfj · Note
• https://github.com/gphoto/libgphoto2/commit/433bde9888d70aa726e32744cd751d7dbe94379a · Note