---
id: CVE-2026-73467
title: >-
  On affected platforms running Arista EOS, under certain circumstances
  plaintext shared secrets for configured Terminal Access Controller
  Access-Control System Plus (TACACS+) servers
summary: >-
  On affected platforms running Arista EOS, under certain circumstances
  plaintext shared secrets for configured Terminal Access Controller
  Access-Control System Plus (TACACS+) servers
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-532
vendor: Arista Networks
product: EOS
affected:
  - EOS >= 4.36.0 <= 4.36.1F
  - EOS >= 4.35.0 <= 4.35.4M
  - EOS >= 4.34.0 <= 4.34.7M
  - EOS >= 0.0.0 <= 4.33.9M
  - EOS <= 4.32.0
  - EOS <= 4.31.0
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:09:28.447'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73467'
references:
  - url: >-
      https://www.arista.com/en/support/advisories-notices/security-advisory/24709-security-advisory-0153
    label: psirt@arista.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T03:57:06.873994Z'
ingestedAt: '2026-09-15T19:42:58.806Z'
epss: 0.00132
epssPercentile: 0.02235
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.