CVE-2018-4856: Siemens Siclock TC100 Firmware

Medium severity, CVSS 4.9. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with administrative access to the device's management interface could lock out legitimate users. Manual interaction is required to restore the access of legitimate users.

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.