Vulnerability · Published Sep 15, 2026 · Assigned by Arista
CVE-2026-73466On affected platforms running Arista EOS, under certain circumstances plaintext user passwords
Medium 6.3
In plain English
A medium-severity sensitive data in logs in EOS from Arista Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Arista Networks | EOS | 4.36.0 – through 4.36.1F4.35.0 – through 4.35.4M4.34.0 – through 4.34.7M0.0.0 – through 4.33.9M0 – through 4.32.00 – through 4.31.0 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
References
- Arista Security Advisory 0153 vendor-advisory