High severity8.2NVD Advisory· Published Sep 16, 2026· Updated Sep 16, 2026
CVE-2026-73435
CVE-2026-73435
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.
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Affected products
1Patches
Vulnerability mechanics
References
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