CVE-2018-4851 json
A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions).
published 2018-07-03 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-16637
- cvss
- 8.2
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with network access to the device could cause a Denial-of-Service condition by sending certain packets to the device, causing potential reboots of the device. The core functionality of the device could be impacted. The time serving functionality recovers when time synchronization with GPS devices or other NTP servers are completed.
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.2 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| NVD | 2.0 | 8.5 | AV:N/AC:L/Au:N/C:N/I:P/A:C |
Affected products
- Siemens AG SICLOCK TC100, SICLOCK TC400
Classification
References
-
cert-portal.siemens.com
/productcert/pdf/ssa-197012.pdf
mitigation, vendor-advisory
-
securityfocus.com
/bid/104672
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-4851
- NVD CVE-2018-4851
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.