CVE-2018-4854

HIGH

SICLOCK TC100 and TC400 Firmware - Unauthenticated Administrative Client Tampering via TFTP

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 port 69/udp could modify the administrative client stored on the device. If a legitimate user downloads and executes the modified client from the affected device, then he/she could obtain code execution on the client system.

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 8.8

EPSS 0.0046

EPSS Percentile 64.0%

Attack Vector NETWORK

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

Details

CWE

CWE-306

Status published

Products (2)

siemens/siclock_tc100_firmware

siemens/siclock_tc400_firmware

Published Jul 03, 2018

Tracked Since Feb 18, 2026