Medium severity6.5NVD Advisory· Published Sep 15, 2026

CVE-2026-19655

Description

On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay/snooping configured with the information option (Option 82), or with the DHCP server configured with match criteria based on the information option, an unauthenticated attacker connected to a client-facing VLAN(s) where the relay is configured can send a specially crafted packet that causes the DHCP Relay service to restart.

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/24711-security-advisory-0155nvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000