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CVE-2026-73440

Security Advisory 0178

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.33.0F
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

On affected platforms running Arista EOS with Simple Network Management Protocol (SNMP) configured, SNMPv3 local or remote user credentials may be exposed as a one-way hashed, localized key value within the device's running and sanitized configurations. An authenticated user who gains access to this sensitive information could leverage it to perform unauthorized read operations on SNMP tables or to send fraudulent trap notifications to the Network Management System (NMS). This issue was discovered internally by Arista, and the company is not aware of any malicious exploitation of this vulnerability in customer networks.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Arista Networks EOS

    From 4.36.0F · through 4.36.1F; From 4.35.0F · through 4.35.5M; From 4.34.0F · through 4.34.7.1M; From 4.33.0F · through 4.33.9M; From 1.0.0 · fixed in 4.33.0F

References 1

arista.com