CVE-2026-7473

Incomplete Comparison with Missing Factors in Arista Extensible Operating System. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 9 June 2026.

Product
Arista Extensible Operating System
Added to CISA's catalog
Federal fix-by date
Ransomware
No known use in ransomware campaigns

CISA’s 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.

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.