What is CVE-2026-40338?

CVE-2026-40338 is a medium-severity vulnerability in Gphoto Libgphoto2, classified under Out-of-bounds Read. CVSS score: 5.2/10. Published 2026-04-17.

How severe is CVE-2026-40338?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Out-of-bounds Read in Gphoto Libgphoto2

CVE-2026-40338

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in the PTP_DPFF_Enumeration case of `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 856). The function reads a 2-b…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (1.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L.

Affected products

Gphoto Libgphoto2 — versions <= 2.5.33

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

https://github.com/gphoto/libgphoto2/security/advisories/GHSA-2hwp-w84q-27hf (x_refsource_CONFIRM)
https://github.com/gphoto/libgphoto2/commit/3b9f9696be76ae51dca983d9dd8ce586a2561845 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-40338?: CVE-2026-40338 is a medium-severity vulnerability in Gphoto Libgphoto2, classified under Out-of-bounds Read. CVSS score: 5.2/10. Published 2026-04-17.
How severe is CVE-2026-40338?: Medium severity. CVSS v3 base score is 5.2 out of 10.