CVE-2025-64642 Mirion Medical EC2 Software NMIS BioDose Incorrect Permission Assignment for Critical Resource

High 7.1 Published 2 Dec 2025 Updated 2 Dec 2025

Insecure default file permissions allow local users to modify executables, potentially leading to code execution or privilege escalation.

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

What is CVE-2025-64642?

CVE-2025-64642 is a high-severity vulnerability in Mirion Medical EC2 Software NMIS BioDose, published on 2 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NMIS/BioDose V22.02 and previous versions' installation directory paths by default have insecure file permissions, which in certain deployment scenarios can enable users on client workstations to modify the program executables and libraries.

Weakness: CWE-732

Which versions are affected by CVE-2025-64642?

It affects 1 product.

Products include Mirion Biodose\/Nmis.

How do I fix CVE-2025-64642?

No fix has been published for CVE-2025-64642 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-64642 being exploited?

There is no known exploitation of CVE-2025-64642 in the wild and no public exploit code.

Sources

Also known as GHSA-884g-x96w-frc5.