CVE-2021-47745
Cypress Solutions CTM-200 2.7.1 Root Remote OS Command Injection via Firmware Upgrade
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-78 |
| Vendor | cypress |
| Product | 200 |
| Published | Dec 31, 2025 |
| Last Updated | Mar 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Cypress / 200
2.7.1
References
exploit-db.com: https://www.exploit-db.com/exploits/50408 cypress.bc.ca: https://www.cypress.bc.ca zeroscience.mk: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5687.php vulncheck.com: https://www.vulncheck.com/advisories/cypress-solutions-ctm-root-remote-os-command-injection-via-firmware-upgrade
Credits
LiquidWorm as Gjoko Krstic of Zero Science Lab