CVE-2026-40338
Medium
Low
Medium
High
Critical
5.2
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 in the PTP_DPFF_Enumeration case of `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 856). The function reads a 2-byte enumeration count N via `dtoh16o(data, *poffset)` without verifying that 2 bytes remain in the buffer. The standard `ptp_unpack_DPD()` at line 704 has this exact check, confirming the Sony variant omitted it by oversight. Commit 3b9f9696be76ae51dca983d9dd8ce586a2561845 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:L
Attack Vector
P
Attack Complexity
L
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
H
Integrity
N
Availability
L
Severity Details
5.2
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
