VulnerabilityALERT High

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

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.

Impact

CISA lists CVE-2026-7473 as known exploited in the wild for Arista Extensible Operating System. Ransomware campaign use: Unknown. Federal remediation due date: 2026-06-23.

Recommended 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.

Published: 6/9/2026, 12:00:00 AMSource: CISA Known Exploited Vulnerabilities CatalogTags: CVE-2026-7473, Arista, Extensible Operating System, CISA KEV, CWE-1023