CVE-2021-47744 CRITICAL

CVE-2021-47744: Cypress Solutions CTM-200/CTM-ONE 1.3.6 Hard-coded Credentials Remote Root

Vendor Cypress
Product ONE
Weakness CWE-798 · Hardcoded credentials
Published December 31, 2025
Last update January 2, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Cypress Solutions CTM-200/CTM-ONE 1.3.6 contains hard-coded credentials vulnerability in Linux distribution that exposes root access. Attackers can exploit the static 'Chameleon' password to gain remote root access via Telnet or SSH on affected devices.

Key dates

02Disclosure timeline

December 31, 2025 CVE published
January 2, 2026 Record updated