Missing Authorization in AutomationDirect products - CVE-2025-55038
Published: September 24, 2025
Vulnerability identifier: #VU116069
CSH Severity: Medium
CVSS v4: 7.6 [CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-55038
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to missing authorization within the KOPR protocol. A remote user can read and modify PLC variables beyond their intended authorization level.
Affected software
CLICK PLUS C2-x CPU
CLICK PLUS C0-0x CPU
CLICK PLUS C0-1x CPU
CLICK PLUS C0-0x CPU
CLICK PLUS C0-1x CPU
How to mitigate CVE-2025-55038
Install updates from vendor's website.
CLICK PLUS C2-x CPU - update to 3.71
CLICK PLUS C0-0x CPU - update to 3.71
CLICK PLUS C0-1x CPU - update to 3.71
CLICK PLUS C0-0x CPU - update to 3.71
CLICK PLUS C0-1x CPU - update to 3.71