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CVE-2026-7473

Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

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 4.0 · 6.9 Medium EPSS 1.1% KEV · Listed
Vendors
Arista
Products
7020sr-24c2 7020sr-32c2 7020srg-24c2 and 99 more
CVE-2023-3646

On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.

On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Arista
Products
7280cr3-32d4 7280cr3-32p4 7280cr3-36s and 44 more