CVE-2026-40333

medium

Description

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.

References

https://github.com/gphoto/libgphoto2/security/advisories/GHSA-hq94-cp6h-3gjp

https://github.com/gphoto/libgphoto2/commit/1817ecead20c2aafa7549dac9619fe38f47b2f53

Details

Source: Mitre, NVD

Published: 2026-04-18

Updated: 2026-04-18

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.1

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

Severity: Medium