PT-2026-33529 · Unknown · Libgphoto2

Published 2026-04-17 · Updated 2026-04-25 · CVE-2026-40335

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 DPV() function within camlibs/ptp2/ptp-pack.c. The issue occurs during the handling of UINT128 and INT128 cases, where the *offset variable is advanced by 16 bytes without verifying that sufficient space remains in the buffer. The existing check only ensures that at least one byte is available, potentially leaving up to 15 bytes unvalidated.

Recommendations Update to version 2.5.34 or later.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-40335

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