CVE-2021-47745 Cypress Solutions CTM-200 2.7.1 Root Remote OS Command Injection via Firmware Upgrade
Authenticated attackers can inject shell commands via the firmware upgrade URL parameter to execute arbitrary code with root privileges on Cypress CTM-200 devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47745?
CVE-2021-47745 is a high-severity command injection vulnerability in Cypress 200, published on 31 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2021-47745?
How do I fix CVE-2021-47745?
No fix has been published for CVE-2021-47745 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2021-47745 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47745 exists.
Sources
Also known as GHSA-2m8q-jcjp-298w.