CVE-2026-40333

Published: Apr 18, 2026Modified: Jun 17, 2026Deferred

6.1

Vector

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

Exploitability: 0.9 / Impact: 5.2

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

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

Source: security-advisories@github.com

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

Source: security-advisories@github.com

Timeline

No history available yet.