CVE-2015-8084: Huawei Unified Security Gateway Firmware

High severity, CVSS 7.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Huawei USG5500, USG2100, USG2200, and USG5100 unified security gateways with software before V300R001C10SPC600, when "DHCP Snooping" is enabled and either "option82 insert" or "option82 rebuild" is enabled on an interface, allow remote attackers to cause a denial of service (reboot) via crafted DHCP packets.

Affected products

• Huawei Unified Security Gateway Firmware: up to and including v300r001c10

Published 2015-12-07. Last modified 2026-06-17.