CVE-2026-40340
MEDIUMlibgphoto2 has OOB read in ptp_unpack_OI() in ptp-pack.c via malicious PTP ObjectInfo response
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/gphoto/libgphoto2/security/advisories/GHSA-xfw3-xvjp-5wcv
X_Refsource_Misc x_refsource_misc
https://github.com/gphoto/libgphoto2/commit/7c7f515bc88c3d0c4098ac965d313518e0ccbe33
Scores
CVSS v3
6.1
EPSS
0.0022
EPSS Percentile
12.2%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
gphoto/libgphoto2
<= 2.5.33
Published
Apr 18, 2026
Tracked Since
Apr 18, 2026