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CVE-2026-73435

Security Advisory 0171

CVSS 3.1 8.2 HIGHCVSS 4.0 7.0 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-73435

Published

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 versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-73435 · CVE overview and exploitation status

cve-program · CVE-2026-73435

Related changes

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Sources read 13 Nov 11:05 UTC · 270 of 275 readable · 268 fully read · documentation 469/469 current

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