CVE-2026-73435

HighCVSS 8.2/10Last modified Sep 16, 2026

Description

On affected platforms running Arista EOS with Open Shortest Path First version 2 (OSPFv2) configured, a specially crafted OSPFv2 packet from an unauthenticated attacker on the same broadcast segment, with OSPFv2 authentication configured can cause adjacency flapping and packet loss. The disruption can affect routing across the broader OSPF domain.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H

Weakness enumeration

CWE-345

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Sep 16, 2026
Last modified
Sep 16, 2026
NVD status
Awaiting Analysis

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CVE-2026-73435: High severity, CVSS 8.2 | Vulnix