CVE-2026-73467 Information disclosure in EOS

Medium 6.0 Published Updated

Attackers can read plaintext TACACS+ shared secrets from Arista EOS devices, potentially compromising authentication infrastructure.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-73467?

CVE-2026-73467 is a medium-severity vulnerability in Arista Networks EOS, published on 15 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers

Weakness: CWE-532

Which versions are affected by CVE-2026-73467?

How do I fix CVE-2026-73467?

No fix has been published for CVE-2026-73467 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-73467 being exploited?

There is no known exploitation of CVE-2026-73467 in the wild and no public exploit code.

Sources

Also known as GHSA-95mm-v55c-g2x9.

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