Security Advisory

CVE-2026-73458

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-15 19:30:16

Last updated 2026-09-15 19:38:38

Assigner Arista

CVSS score 9.2

State PUBLISHED

Description

On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection (BFD) sessions configured, a specially crafted packet can cause the BFD session(s) to go down. This may result in undesirable network changes because various routing protocols monitor status on BFD session(s).

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