CVE-2026-73466 On affected platforms running Arista EOS, under certain circumstances plaintext user passwords
Authenticated local administrators can read plaintext user passwords from logs if non-standard debugging trace levels are enabled.
- 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-2026-73466?
CVE-2026-73466 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 user passwordss may be written in clear text to log files during operations when specialized non-standard debugging trace levels are explicitly enabled.
To exploit these vulnerabilities, a malicious actor must already possess authenticated local administrative access to the device shell, and specialized non-standard debugging trace levels must be explicitly enabled.
This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.
Weakness: CWE-532
Which versions are affected by CVE-2026-73466?
How do I fix CVE-2026-73466?
No fix has been published for CVE-2026-73466 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73466 being exploited?
There is no known exploitation of CVE-2026-73466 in the wild and no public exploit code.
Sources
Also known as GHSA-h69p-gmv2-fxg5.