A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions).

Published 8 y ago 2018-07-03 · modified 4 mo ago 2026-06-17 · JSON

CVSS

9.8

v3.0 · NVD

CISA KEV

not known exploited

EPSS

2.7%

percentile 86%

Public exploits

none known

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could potentially circumvent the authentication mechanism if he/she is able to obtain certain knowledge specific to the attacked device.

Exploit prediction (EPSS)

2.69% probability of exploitation in the next 30 days, higher than 86% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	9.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	7.5	`AV:N/AC:L/Au:N/C:P/I:P/A:P`

Affected products

Siemens AG SICLOCK TC100, SICLOCK TC400

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel
CWE-287 Improper Authentication

References

securityfocus.com /bid/104672 · vdb-entry, x_refsource_BID, x_transferred
cert-portal.siemens.com /productcert/pdf/ssa-197012.pdf · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2018-4852
NVD: CVE-2018-4852

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary