CVE-2018-15557: Actiontec WEB6000Q Firmware

High severity, CVSS 8.8. EPSS: 3.3% chance of exploitation in the next 30 days.

An issue was discovered in the Quantenna WiFi Controller on Telus Actiontec WEB6000Q v1.1.02.22 devices. An attacker can statically set his/her IP to anything on the 169.254.1.0/24 subnet, and obtain root access by connecting to 169.254.1.2 port 23 with telnet/netcat.

Affected products

• Actiontec WEB6000Q Firmware: version 1.1.02.22 only

Published 2019-06-27. Last modified 2026-06-17.