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CVE-2026-7473

Arista Extensible Operating System CWE-1023

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. This issue has been reported as being exploited in the wild.

CVSS Score
6.9
Medium
EPSS — Exploit Probability
22%
Riskier than 96% of all CVEs
Exploitation
Confirmed in the wild
KEV since 2026-06-09
Remediation
Patch available
Federal deadline 2026-06-23
NVD entry Vendor patch PoC / advisory CISA KEV

8 articles across 5 outlets · first covered Jun 9, 2026 · latest Jun 10, 2026

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vulnerability open 4 articles
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