CVE-2025-32855: 
Telecontrol Server Basic vulnerability analysis and mitigation

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection through the internally used 'UnlockOpcSettings' method. This vulnerability was discovered and disclosed on April 16, 2025 (NVD, Siemens Advisory).

The vulnerability is classified as SQL Injection (CWE-89) with a CVSS v3.1 base score of 8.8 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and a CVSS v4.0 base score of 8.7 (Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N). The vulnerability exists in the 'UnlockOpcSettings' method and requires an authenticated remote attacker to access port 8000 on the affected system (Siemens Advisory).

A successful exploitation could allow an authenticated remote attacker to bypass authorization controls, read from and write to the application's database, and execute code with 'NT AUTHORITY\NetworkService' permissions (NVD, CISA).

Siemens has released version V3.1.2.2 to address this vulnerability. As a workaround, organizations should restrict access to port 8000 on affected systems to trusted IP addresses only. Siemens also recommends configuring the environment according to their operational guidelines for Industrial Security (Siemens Advisory).