VULNERABILITY INTELLIGENCE

CVE-2018-4851

CVSS score8.2 HIGH

EPSS probability1.46%

CISA KEVNot currently listed

Published2018-07-03

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Description

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could cause a Denial-of-Service condition by sending certain packets to the device, causing potential reboots of the device. The core functionality of the device could be impacted. The time serving functionality recovers when time synchronization with GPS devices or other NTP servers are completed.

Weakness classification

CWE-20: Improper Input Validation

Primary references

productcert@siemens.com — Third Party Advisory, VDB Entry
productcert@siemens.com — Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory