CVE-2026-25622

Arista Edge Threat Management NGFW Captive Portal Custom Handler Command Injection

Published Jun 5, 2026 CVSS 4.0 · 7 High EPSS 9.3% KEV · Not listed
Description
A Captive Portal Custom Handler command injection vulnerability exists in Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). On affected platforms, an administrative account logged into the user interface can exploit this input handling behavior to execute arbitrary platform shell commands.

Remediation

Vendor Solution

The recommended resolution is to upgrade to NGFW Version 17.4.1 at your earliest convenience.


Vendor Workaround

Per operational best practice security models, do not allow unauthorized administrative access to the administrative browser.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Arista ng Firewall
CPEs cpe:2.3:a:arista:ng_firewall:*:*:*:*:*:*:*:*
Vendors & Products Arista ng Firewall
Type Values Removed Values Added
First Time appeared Arista
Arista edge Threat Management
Vendors & Products Arista
Arista edge Threat Management
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A Captive Portal Custom Handler command injection vulnerability exists in Arista Edge Threat Management - Arista Next Generation Firewall (NGFW). On affected platforms, an administrative account logged into the user interface can exploit this input handling behavior to execute arbitrary platform shell commands.
Title Arista Edge Threat Management NGFW Captive Portal Custom Handler Command Injection
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L'}

cvssV4_0

{'score': 7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Arista
Published
Updated
Jun 5, 2026, 8:26 PM
Reserved
Feb 3, 2026, 10:23 PM
Status
Analyzed
Published
Jun 5, 2026, 8:17 PM
Modified
Jul 23, 2026, 7:10 AM