CVE-2026-19655 (GCVE-0-2026-19655)
Vulnerability from cvelistv5
Published
2026-09-15 20:56
Modified
2026-09-16 18:03
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High) - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Summary
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.
References
Impacted products
Vendor Product Version
Arista Networks EOS Version: 4.35.0   <
Version: 4.34.0   <
Version: 4.33.0   <
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