Security readout for executives and security teams
Siemens SICLOCK TC100 and TC400 time synchronization devices have an authentication bypass issue affecting all versions. A network-connected attacker could potentially get around authentication if they already know certain details specific to the target device. The public bundle does not provide CVSS scoring, confirmed exploitation, or a named patch. Exposure is most relevant where SICLOCK TC100 or TC400 devices are reachable from enterprise, vendor, remote-access, or untrusted networks. Isolated OT timing networks reduce practical risk. Prioritize this for OT environments that depend on Siemens SICLOCK devices or allow broad network access to timing infrastructure. Business urgency is lower where devices are isolated and monitored, but unresolved authentication bypass risk should not be left untracked. Mitigation focus: Inventory SICLOCK TC100 and TC400 devices and confirm network reachability.; Restrict access to these devices to trusted OT management networks only.; Review Siemens SSA-197012 for vendor-approved remediation or compensating controls..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-288: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-4852 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-197012.pdfCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.