PT-2026-33537 · Unknown · Libgphoto2

Published 2026-04-17 · Updated 2026-04-25 · CVE-2026-40339

Positive Technologies (AI Summary)

CVSS v3.1

5.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libgphoto2 versions prior to 2.5.34

Description An out-of-bounds read exists in the ptp unpack Sony DPD() function within camlibs/ptp2/ptp-pack.c. The issue occurs because the function reads the FormFlag byte using dtoh8o(data, *poffset) without performing a prior bounds check, unlike the standard ptp unpack DPD() function which validates the offset against the data length.

Recommendations Update to version 2.5.34 or later.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-40339

OESA-2026-2067

OESA-2026-2068

OESA-2026-2069

OESA-2026-2070

OESA-2026-2071

Affected Products

Libgphoto2

References · 25

• https://nvd.nist.gov/vuln/detail/CVE-2026-40338 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-40340 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-40339 · Security Note
• https://ubuntu.com/security/CVE-2026-40339 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-40339 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-40339 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2070 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40341 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2067 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-40339 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2071 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2068 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2069 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40335 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-40334 · Security Note