Mirion Medical EC2 Software NMIS BioDose Incorrect Permission Assignment for Critical Resource

published 2025-12-02 11 mo ago modified 2026-09-25 44 d ago also EUVD-2025-200324

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Mirion Medical EC2 Software NMIS BioDose 23.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-25-336-01 updated 2025-12-02 cvss 8.0

Mirion Medical EC2 Software NMIS BioDose

Mirion Medical EC2 Software NMIS BioDose <23.0
affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 11 mo ago (2025-12-02)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
CNA	3.1	8.0	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CNA	4.0	7.1	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Mirion Medical EC2 Software NMIS BioDose

Classification

Weakness

CWE-732 Incorrect Permission Assignment for Critical Resource

References

cisa.gov /news-events/ics-medical-advisories/icsma-25-336-01
third-party-advisory

Sources

CVE List CVE-2025-64642
NVD CVE-2025-64642

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary