medium5.8Known exploited
CVE-2026-7473
Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-06-09. Federal due date: 2026-06-23.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Arista | Eos | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://www.arista.com/en/support/advisories-notices/security-advisory/22872-security-advisory-0137
- https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-7473