CVE-2018-4851

HIGH

Siemens SICLOCK TC100 and TC400 - Denial of Service via Network Packet

Title source: llm

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.

References (2)

Core 2

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/104672

Mitigation, Vendor Advisory x_refsource_confirm

https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdf

Scores

CVSS v3 8.2

EPSS 0.0044

EPSS Percentile 63.5%

Attack Vector NETWORK

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

Details

CWE

CWE-399 CWE-20

Status published

Products (2)

siemens/siclock_tc100_firmware

siemens/siclock_tc400_firmware

Published Jul 03, 2018

Tracked Since Feb 18, 2026