CVE-2026-40425 MacGregor Voyage Data Recorder (VDR) G4e Files or Directories Accessible to External Parties

Medium 6.9 Published 29 May 2026 Updated 29 May 2026

An administrator can directly edit sensitive authentication files via the web interface, potentially changing the root password and escalating privileges.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-40425?

CVE-2026-40425 is a medium-severity missing authorization vulnerability in Danelec MacGregor Voyage Data Recorder (VDR) G4e, published on 29 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The administrator account for the

Danelec MacGregor Voyage Data Recorder web interface can directly edit sensitive files related to authentication, potentially changing the root password.

Weakness: CWE-552

Which versions are affected by CVE-2026-40425?

It affects 1 product.

Products include Macgregor Interschalt Vdr G4e Firmware.

How do I fix CVE-2026-40425?

No fix has been published for CVE-2026-40425 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-40425 being exploited?

There is no known exploitation of CVE-2026-40425 in the wild and no public exploit code.

Sources

Also known as GHSA-3cp8-799v-mwxm.