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Description

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.

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-xfw3-xvjp-5wcv

github.com/...ommit/7c7f515bc88c3d0c4098ac965d313518e0ccbe33

cve.org (CVE-2026-40340)

nvd.nist.gov (CVE-2026-40340)

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