{"cve":"CVE-2026-7473","nvd":{"published":"2026-06-05T17:17:02.850","modified":"2026-10-25T23:10:00.167","status":"Analyzed","description":"On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tunnel traffic.\n\n\n\nThis issue has been reported as being exploited in the wild.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","score":5.8},"cwes":["CWE-1023"],"references":["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"],"products":["arista:eos"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-7473","score":0.01108,"percentile":0.65633,"date":"2026-10-25"},"kev":{"cve":"CVE-2026-7473","date_added":"2026-06-09","due_date":"2026-06-23","vendor":"Arista","product":"Extensible Operating System","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}