CVE-2018-16563
5.9 · MEDIUMOverview
CVE-2018-16563 is a medium-severity vulnerability affecting siemens siprotec_5_with_cpu_variant_cp100. It was published on March 21, 2019 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethernet module (All versions < V4.35), Firmware variant MODBUS TCP for EN100 Ethernet module (All versions), Firmware variant DNP3 TCP for EN100 Ethernet module (All versions), Firmware variant IEC104 for EN100 Ethernet module (All versions), Firmware variant Profinet IO for EN100 Ethernet module (All versions), SIPROTEC 5 relays with CPU variants CP300 and CP100 and the respective Ethernet communication modules (All versions < V7.82), SIPROTEC 5 relays with CPU variants CP200 and the respective Ethernet communication modules (All versions < V7.58). Specially crafted packets to port 102/tcp could cause a denial-of-service condition in the affected products. A manual restart is required to recover the EN100 module functionality of the affected devices. Successful exploitation requires an attacker with network access to send multiple packets to the affected products or modules. As a precondition the IEC 61850-MM
Remediation
Check the references section for vendor advisories and patches from siemens. Update siprotec_5_with_cpu_variant_cp100 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| siemens | siprotec_5_with_cpu_variant_cp100 | >= 0, < 7.82 | Affected |
| siemens | siprotec_5_with_cpu_variant_cp200 | >= 0, < 7.58 | Affected |
| siemens | siprotec_5_with_cpu_variant_cp300 | >= 0, < 7.82 | Affected |
Frequently Asked Questions
What is CVE-2018-16563?
CVE-2018-16563 is a medium-severity vulnerability affecting siemens siprotec_5_with_cpu_variant_cp100. It was published on March 21, 2019 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
How severe is CVE-2018-16563?
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-16563?
Check the references section for vendor advisories and patches from siemens. Update siprotec_5_with_cpu_variant_cp100 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-16563?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-16563 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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