PT-2026-33538 · Unknown · Libgphoto2

Published 2026-04-17 · Updated 2026-04-25 · CVE-2026-40340

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

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 OI() function within camlibs/ptp2/ptp-pack.c. The function validates that the len variable is less than PTP oi SequenceNumber (48), but it subsequently accesses offsets 48 through 56, reading up to 9 bytes beyond the validated boundary via the Samsung Galaxy 64-bit objectsize detection heuristic.

Recommendations Update to a version later than 2.5.33.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-40340

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