CVE-2026-40341 libgphoto2 has an OOB Read in ptp_unpack_EOS_FocusInfoEx
An out-of-bounds read in libgphoto2 allows attackers to crash the application via malicious USB device input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-40341?
CVE-2026-40341 is a low-severity memory corruption vulnerability in libgphoto2, published on 17 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, an out of bound read in ptp_unpack_EOS_FocusInfoEx could be used to crash libgphoto2 when processing input from untrusted USB devices. Commit c385b34af260595dfbb5f9329526be5158985987 contains a patch. No known workarounds are available.
Weakness: CWE-126
Which versions are affected by CVE-2026-40341?
How do I fix CVE-2026-40341?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-40341 being exploited?
There is no known exploitation of CVE-2026-40341 in the wild and no public exploit code.
Sources
Also known as AZL-83015, DEBIAN-CVE-2026-40341, GHSA-vjx3-gjp6-r2g2, UBUNTU-CVE-2026-40341.