Is CVE-2026-40340 actively exploited?

No active exploitation of CVE-2026-40340 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40340 be exploited remotely?

No. CVE-2026-40340 requires physical access to exploit.

What is the CVSS score of CVE-2026-40340?

CVE-2026-40340 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2026-40340

CWE-125Published: April 18, 2026· Updated: Apr 20, 2026

6.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:0.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40340 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 6.1.