CVE-2018-4858
7.8 · HIGHOverview
CVE-2018-4858 is a high-severity vulnerability affecting siemens ec_61850_system_configurator_firmware. It was published on July 9, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability has been identified in IEC 61850 system configurator (All versions < V5.80), DIGSI 5 (affected as IEC 61850 system configurator is incorporated) (All versions < V7.80), DIGSI 4 (All versions < V4.93), SICAM PAS/PQS (All versions < V8.11), SICAM PQ Analyzer (All versions < V3.11), SICAM SCC (All versions < V9.02 HF3). A service of the affected products listening on all of the host's network interfaces on either port 4884/TCP, 5885/TCP, or port 5886/TCP could allow an attacker to either exfiltrate limited data from the system or to execute code with Microsoft Windows user permissions. Successful exploitation requires an attacker to be able to send a specially crafted network request to the vulnerable service and a user interacting with the service's client application on the host. In order to execute arbitrary code with Microsoft Windows user permissions, an attacker must be able to plant the code in advance on the host by other means. The vulnerability has limited impact
Remediation
Check the references section for vendor advisories and patches from siemens. Update ec_61850_system_configurator_firmware 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 | ec_61850_system_configurator_firmware | >= 0, < 5.80 | Affected |
| siemens | sicam_pq_analyzer_firmware | >= 0, < 3.11 | Affected |
| siemens | digsi_5_firmware | >= 0, < 7.80 | Affected |
| siemens | sicam_pas\/pqs | >= 0, < 8.11 | Affected |
References
Frequently Asked Questions
What is CVE-2018-4858?
CVE-2018-4858 is a high-severity vulnerability affecting siemens ec_61850_system_configurator_firmware. It was published on July 9, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2018-4858?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-4858?
Check the references section for vendor advisories and patches from siemens. Update ec_61850_system_configurator_firmware 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-2018-4858?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-4858 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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