CVE-2026-40340
Medium
Low
Medium
High
Critical
6.1
CVSS Score
Vulnerability Description
libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector
P
Attack Complexity
L
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
H
Integrity
N
Availability
H
Severity Details
6.1
out of 10.0
Medium
Weakness Type (CWE)
CWE-125
Top 25 #11
Out-of-bounds Read
- Description
- The product reads data past the end, or before the beginning, of the intended buffer.
- Typical Severity
- High
- Abstraction Level
- Base
Key Information
- Published Date
- April 18, 2026
