An Improper Authentication issue was discovered in Siemens SIMATIC CP 44x-1 RNA, all versions prior to 1.4.1. An unauthenticated remote attacker may be able to perform administrative actions on the Communication Process (CP) of the RNA series module, if network access to Port 102/TCP is available and the configuration file for the CP is stored on the RNA's CPU.
CVE-2017-6868
HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence
Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 8.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 8.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EPSS
- 89.7%
- KEV
- Not listed
Published
July 7, 2017
Last Modified
May 13, 2026
References (8)
- ics-cert@hqhttp://www.securityfocus.com/bid/99234
- ics-cert@hqhttp://www.securitytracker.com/id/1038788
- ics-cert@hqhttps://ics-cert.us-cert.gov/advisories/ICSA-17-173-01
- ics-cert@hqhttps://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-126840.pdf
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99234
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038788
- af854a3a-2127-422b-91ae-364da2661108https://ics-cert.us-cert.gov/advisories/ICSA-17-173-01
- af854a3a-2127-422b-91ae-364da2661108https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-126840.pdf
Data Freshness Timeline
(refreshed 11× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2017-6868?
CVE-2017-6868 is a high vulnerability published on July 7, 2017. An Improper Authentication issue was discovered in Siemens SIMATIC CP 44x-1 RNA, all versions prior to 1.4.1. An unauthenticated remote attacker may be able to perform administrative actions on the Communication Process (CP) of the RNA series module, if network access to Port 102/TCP is available…
When was CVE-2017-6868 disclosed?
CVE-2017-6868 was first published in the National Vulnerability Database on July 7, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6868 actively exploited?
CVE-2017-6868 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-6868?
CVE-2017-6868 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2017-6868?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6868, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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