Cypress Solutions CTM-200 2.7.1 Root Remote OS Command Injection via Firmware Upgrade

Advisories

severity: high
date: December 31, 2025
Affecting: 2.7.1.5659
2.0.5.3356-184
CVE: CVE-2021-47745
CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS: 8.6
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-50408
Cypress Solutions Product Homepage
Zero Science Lab Disclosure (ZSL-2021-5687)
Credit: LiquidWorm as Gjoko Krstic of Zero Science Lab
Description: Cypress Solutions CTM-200 2.7.1 contains an authenticated command injection vulnerability in the firmware upgrade script that allows remote attackers to execute shell commands. Attackers can exploit the 'fw_url' parameter in the ctm-config-upgrade.sh script to inject and execute arbitrary commands with root privileges.