CVE Watch25 de out. de 2026

CVE-2026-7473

Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

CVSS

5.8

Média

EPSS

1.1%

p66

KEV

SIM

9 de jun. de 2026

Exploit Today

0-100

Publicado: 5 de jun. de 2026 · Última mod.: 25 de out. de 2026 · CWE-1023

EPSS · 30d

0.6%EPSS · 30 dias1.1%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Arista / Extensible Operating System

Vulnerabilidade

Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

Adicionado ao KEV

9 de jun. de 2026

Corrigir até

23 de jun. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

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.

Ação necessária

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notas

https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137 ; https://nvd.nist.gov/vuln/detail/CVE-2026-7473

Descrição técnica

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.

Referências oficiais

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