Arista Edge Threat Management NGFW UI Arbitrary Command Execution

published 2026-06-05 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-34909

cvss: 6.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 5.6%; EPSS 5.6% chance of exploitation in 30 days, percentile 92%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

arista ng_firewall 17.4.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-06-05)

Exploit prediction

5.62% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.0	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
CNA	4.0	7.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L/S:P
CNA	4.0	7.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L/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:P/AU:X/R:X/V:X/RE:X/U:X

Affected products

Arista Networks Arista Edge Threat Management - Arista Next Generation Firewall (NGFW)

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

arista.com /en/support/advisories-notices/security-advisory/23399-security-advisory-0133
vendor-advisory

Sources

CVE List CVE-2026-25623
NVD CVE-2026-25623

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