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Vulnerability record · CVE-2021-47745 · published 31 December 2025

CVE-2021-47745: OS command injection vulnerability

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.

8.6 CVSS 4.0 High EPSS 1.3% · top 30.0% CWE-78 · OS command injection Deferred
8.6CVSS 4.0 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.cypress.bc.ca
https://www.exploit-db.com/exploits/50408
https://www.vulncheck.com/advisories/cypress-solutions-ctm-root-remote-os-command-injection-via-firmware-upgrade
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5687.php

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Source: NIST National Vulnerability Database (record CVE-2021-47745), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.