CVE-2018-4855: Siemens Siclock TC100 Firmware

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). Unencrypted storage of passwords in the client configuration files and during network transmission could allow an attacker in a privileged position to obtain access passwords.

Affected products

• Siemens Siclock TC100 Firmware: affected versions not specified
• Siemens Siclock TC400 Firmware: affected versions not specified

Published 2018-07-03. Last modified 2026-06-17.