CVE-2019-6821
6.5 · MEDIUMOverview
CVE-2019-6821 is a medium-severity vulnerability affecting schneider-electric modicon_m580_firmware. It was published on May 22, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum.
Remediation
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m580_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 |
|---|---|---|---|
| schneider-electric | modicon_m580_firmware | >= 0, < 2.30 | Affected |
References
Frequently Asked Questions
What is CVE-2019-6821?
CVE-2019-6821 is a medium-severity vulnerability affecting schneider-electric modicon_m580_firmware. It was published on May 22, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2019-6821?
This vulnerability has a CVSS 3.1 base score of 6.5, 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-2019-6821?
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m580_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-2019-6821?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-6821 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.
How CyberStrike Helps
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