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CVE-2026-19655

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 unauthent PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Arista Networks / EOSaffected 4.35.0 through 4.35.5M; affected 4.34.0 through 4.34.7.1M; affected 4.33.0 through 4.33.9M

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.