PT-2026-33538 · Gphotos · Libgphoto2

Published 2026-04-17 · Updated 2026-04-18 · CVE-2026-40340

Mitre

CVSS v3.1

6.1

Medium

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

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.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-40340

Affected Products

Libgphoto2

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-40340 · Security Note
• https://github.com/gphoto/libgphoto2/commit/7c7f515bc88c3d0c4098ac965d313518e0ccbe33 · Note
• https://github.com/gphoto/libgphoto2/security/advisories/GHSA-xfw3-xvjp-5wcv · Note