RCE in Arista Ng Firewall
CVE-2026-25620
An encrypted password command injection vulnerability exists in the Captive Portal application framework of Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). This issue uniquely affects version 17.4.0; earlier software releases are not exposed.
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: 0.010 (61.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.099 · newest: 0.010 · change: -0.089
Affected products
- Arista Ng Firewall — versions 17.4
- Arista Networks Edge Threat Management - Next Generation Firewall (Ngfw) — versions 17.4.0
Weakness classification (CWE)
References
- www.arista.com/en/support/advisories-notices/security-advisory/22867-security-a… (vendor-advisory, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-25620?
- CVE-2026-25620 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-2026-25620?
- Medium severity. CVSS v3 base score is 6.0 out of 10.