Critical severity9.8NVD Advisory· Published Jul 3, 2018· Updated Jun 17, 2026

CVE-2018-4853

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 firmware of the device.

Affected products

Siemens Foundation/SICLOCK TC100llm-fuzzy
Range: all versions
Siemens Foundation/SICLOCK TC400llm-fuzzy
Range: all versions
Siemens AG/SICLOCK TC100, SICLOCK TC400v5
Range: SICLOCK TC100 : All versions

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/104672nvdThird Party AdvisoryVDB Entry
cert-portal.siemens.com/productcert/pdf/ssa-197012.pdfnvdMitigationVendor Advisory

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000