CVE-2021-47745 HIGH

CVE-2021-47745: Cypress Solutions CTM-200 2.7.1 Root Remote OS Command Injection via Firmware Upgrade

Vendor Cypress

Product 200

Weakness CWE-78

Published December 31, 2025

Last update March 5, 2026

View on NVD All CVEs

CVSS base score

8.6/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality —

Integrity —

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 31, 2025 CVE published

March 5, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-47745 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/78.html

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04Related CVE

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