High severity8.2NVD Advisory· Published Sep 15, 2026

CVE-2026-73458

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).

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Arista/Eosllm-fuzzy

Patches

Vulnerability mechanics

References

www.arista.com/en/support/advisories-notices/security-advisory/24710-security-advisory-0154nvd

News mentions

No linked articles in our index yet.

cvss	0.533
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000