MEDIUM
CVE-2026-19655
CVSS
6.5
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.
Weakness (CWE)
CWE-20
Improper Input Validation
EPSS Score
0.19%
Probability of exploitation in next 30 days
9.4th percentile
References
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.