CVE-2026-40335
libgphoto2 has OOB read in ptp_unpack_DPV() UINT128/INT128 handling in ptp-pack.c
CVSS Score
5.2
EPSS Score
0.0%
EPSS Percentile
0th
libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_DPV()` in `camlibs/ptp2/ptp-pack.c` (lines 622–629). The UINT128 and INT128 cases advance `*offset += 16` without verifying that 16 bytes remain in the buffer. The entry check at line 609 only guarantees `*offset < total` (at least 1 byte available), leaving up to 15 bytes unvalidated. Commit 433bde9888d70aa726e32744cd751d7dbe94379a patches the issue.
| CWE | CWE-125 |
| Vendor | gphoto |
| Product | libgphoto2 |
| Published | Apr 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low
Affected Versions
gphoto / libgphoto2
<= 2.5.33