PT-2026-33524 · Unknown · Libgphoto2

Published 2026-04-17 · Updated 2026-04-25 · CVE-2026-40334

Positive Technologies (AI Summary)

CVSS v3.1

3.5

Low

Base vector

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

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

Description A missing null terminator exists in the ptp unpack Canon FE() function within the camlibs/ptp2/ptp-pack.c file. The function uses strncpy to copy a filename into a 13-byte buffer without ensuring the result is null-terminated. If the source data is exactly 13 bytes and lacks a null terminator, the buffer remains unterminated, which can lead to out-of-bounds reads during subsequent string operations.

Recommendations Update to a version later than 2.5.33.

Fix

Weakness Enumeration

CWE-170

Related Identifiers

CVE-2026-40334

OESA-2026-2067

OESA-2026-2068

OESA-2026-2069

OESA-2026-2070

OESA-2026-2071

Affected Products

Libgphoto2

References · 25

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