CVE-2026-73468

Medium

Description

A specially crafted packet can cause the premature expiry of multicast forwarding state on affected interfaces, potentially resulting in temporary multicast traffic loss during the affected period.

SeverityMedium
CVSS6.5
Exploit probability—
ProductEOS
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-670CWE-670

How to fix

Update
  • Arista Networks EOS4.33.0F or later

Affected products

ProductAffected versionsFixed in
Arista Networks EOS1.0.0 ≤ v < 4.33.0F, 4.33.0F ≤ v ≤ 4.33.8M, 4.34.0F ≤ v ≤ 4.34.7.1M, 4.35.0F ≤ v ≤ 4.35.5M, 4.36.0F ≤ v ≤ 4.36.1F4.33.0F

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