CVE-2026-73467

Received Received - Intake

Plaintext TACACS+ Shared Secrets in Arista EOS

Publication date: 2026-09-15

Last updated on: 2026-09-16

Assigner: Arista Networks, Inc.

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-16

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-73467

EUVD

EUVD-2026-79027

Affected Vendors & Products

Vendor	Product	Version / Range
arista	eos	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-532	The product writes sensitive information to a log file.

Attack-Flow Graph

Executive Summary

This vulnerability involves plaintext shared secrets for configured TACACS+ servers on Arista EOS platforms. Under specific conditions, sensitive credentials are exposed in plaintext, potentially allowing unauthorized access to network devices.

Impact Analysis

An attacker could exploit this to gain access to network devices, intercept communications, or perform unauthorized actions. This may lead to data breaches, network compromise, or disruption of services.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA due to unauthorized access to sensitive data. Organizations may face legal penalties, reputational damage, and loss of trust if such breaches occur.

Mitigation Strategies

Immediately review and rotate all TACACS+ shared secrets on affected Arista EOS devices. Disable TACACS+ server configurations if not required. Monitor for unauthorized access attempts or unusual activity.

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