CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.8. See the original NVD description below for full technical details.
CVE
CVE-2019-12789
Severity
MEDIUM
CVSS
6.8
EPSS
0.57%
Original NVD Description
An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-\) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device.
Related CVEs
Other vulnerabilities affecting the same vendor(s)