CVE-2026-25620 Arista Edge Threat Management NGFW Captive Portal Encrypted Password Command Injection

High 7.0 Published Updated

Attackers can execute arbitrary commands via encrypted password injection in the Arista NGFW Captive Portal, requiring an upgrade to remediate.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-25620?

CVE-2026-25620 is a high-severity command injection vulnerability in Arista Edge Threat Management - Arista Next Generation Firewall (NGFW), published on 5 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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.

Weakness: CWE-78

Which versions are affected by CVE-2026-25620?

It affects 1 product.

Products include Arista Ng Firewall.

How do I fix CVE-2026-25620?

No fix has been published for CVE-2026-25620 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-25620 being exploited?

There is no known exploitation of CVE-2026-25620 in the wild and no public exploit code.

Sources

Also known as GHSA-533r-r386-qc78.

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