Is CVE-2026-40333 actively exploited?

No active exploitation of CVE-2026-40333 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40333 be exploited remotely?

No. CVE-2026-40333 requires physical access to exploit.

What is the CVSS score of CVE-2026-40333?

CVE-2026-40333 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2026-40333

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

6.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.0th

Official Description

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.

NVD Source

Technical Analysis

CVE-2026-40333 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.