CVE-2026-7473 - Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

Vulnerability Name

Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

Description

Arista Extensible Operating System (EOS) contains an incomplete comparison with missing factors vulnerability when the switch incorrectly decapsulate and forwards other unexpected tunneled packet with a destination IP matching its configured decapsulation IP.

Known To Be Used in Ransomware Campaigns?

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137

https://nvd.nist.gov/vuln/detail/CVE-2026-7473