RCE in Arista Ng Firewall

CVE-2026-25623

An input validation command execution vulnerability exists in the browser management pipeline of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). Authenticated administrators can leverage this exposure to obtain underlying terminal script code processing execution permissions.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L.

EPSS exploit prediction

EPSS: 0.006 (46.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-25623: fell from 0.060 to 0.006.

EPSS over last 30 days · oldest: 0.060 · newest: 0.006 · change: -0.054

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-25623?
CVE-2026-25623 is a medium-severity vulnerability in Arista Ng Firewall, classified under OS Command Injection. CVSS score: 6.0/10. Published 2026-06-05.
How severe is CVE-2026-25623?
Medium severity. CVSS v3 base score is 6.0 out of 10.