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CVE Record

CVE-2018-4856: A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions).

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

SICLOCK TC100 and TC400 time devices can be abused by someone who already has administrative access to the management interface to lock out legitimate users. Restoring access requires manual interaction, so the main business risk is operational disruption and delayed administration. Exposure is most relevant where SICLOCK TC100 or TC400 management interfaces are reachable by administrators, shared operations networks, or insufficiently controlled admin accounts. Internet exposure is not stated in the sources. Treat this as a targeted operational availability risk. Prioritize if these devices support time-critical industrial, security, or infrastructure functions, especially where administrative access is broadly shared. Mitigation focus: Review Siemens SSA-197012 for vendor-specific guidance or updates.; Restrict management interface access to trusted administrative networks only.; Limit administrative accounts and remove shared or unnecessary privileges..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-287: Credential and account abuse lookup

Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2018-4856 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Siemens AGSICLOCK TC100, SICLOCK TC400SICLOCK TC100 : All versions, SICLOCK TC400 : All versionsListed
Weakness

CWE details

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CWE-287 · source CWE mapping

Improper Authentication

Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.