CVE-2026-7473
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.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Jun 9, 2026
- US federal agencies must remediate it by Jun 23, 2026 (BOD 22-01)
- Attacked 32 days before the vulnerability was made public
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source: CISA KEV · Jul 10, 2026 Jun 9, 2026 Jun 5, 2026 May 5, 2026
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NAffected products
| Vendors | Product | Versions |
|---|---|---|
| arista | eos | — |
| arista | 7020sr-24c2 | - |
| arista | 7020sr-32c2 | - |
| arista | 7020srg-24c2 | - |
| arista | 7020tr-48 | - |
| arista | 7020tra-48 | - |
| arista | 7280cr-48 | - |
| arista | 7280cr2-60 | - |
| arista | 7280cr2a-30 | - |
| arista | 7280cr2a-60 | - |
| arista | 7280cr2k-30 | - |
| arista | 7280cr2k-60 | - |
| arista | 7280cr2m-30 | - |
| arista | 7280cr3-32d4 | - |
| arista | 7280cr3-32p4 | - |
| arista | 7280cr3-36s | - |
| arista | 7280cr3-96 | - |
| arista | 7280cr3a-24d12 | - |
| arista | 7280cr3a-48d6 | - |
| arista | 7280cr3a-72 | - |
| arista | 7280cr3ak-24d12 | - |
| arista | 7280cr3ak-48d6 | - |
| arista | 7280cr3ak-72 | - |
| arista | 7280cr3am-24d12 | - |
| arista | 7280cr3am-48d6 | - |
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