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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.

PUBLISHED Reserved 2026-04-10 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M




MEDIUM: 6.1CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Problem types

CWE-125: Out-of-bounds Read

Product status

<= 2.5.33
affected

References

github.com/...photo2/security/advisories/GHSA-hq94-cp6h-3gjp

github.com/...ommit/1817ecead20c2aafa7549dac9619fe38f47b2f53

cve.org (CVE-2026-40333)

nvd.nist.gov (CVE-2026-40333)

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