CVE-2017-6868
CVE-2017-6868 is a high-severity vulnerability in Siemens Simatic Cp 44x-1 Redundant Network Access Modules with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 6.8
- EPSS exploit prediction: 4% (90th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Siemens Simatic Cp 44x-1 Redundant Network Access Modules
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2017-6868?
- 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.
- How severe is CVE-2017-6868?
- CVE-2017-6868 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-6868 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-6868?
- CVE-2017-6868 affects Siemens Simatic Cp 44x-1 Redundant Network Access Modules. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-6868?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2017-6868 published?
- CVE-2017-6868 was published on 2017-07-07 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/99234
- http://www.securitytracker.com/id/1038788
- https://ics-cert.us-cert.gov/advisories/ICSA-17-173-01
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-126840.pdf
Affected products (1)
- cpe:2.3:a:siemens:simatic_cp_44x-1_redundant_network_access_modules:*:*:*:*:*:*:*:*
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