CVE-2020-7539
7.5 · HIGHOverview
CVE-2020-7539 is a high-severity vulnerability affecting schneider-electric modicon_m340_bmxp341000_firmware. It was published on December 11, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause a denial of service vulnerability when a specially crafted packet is sent to the controller over HTTP.
Remediation
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m340_bmxp341000_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_m340_bmxp341000_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp342000_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp3420102_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp3420102cl_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp342020_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp3420302_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | modicon_m340_bmxp3420302cl_firmware | >= 0, < 3.30 | Affected |
| schneider-electric | bmxnoe0100_firmware | >= 0, < 3.3 | Affected |
| schneider-electric | bmxnoe0110_firmware | >= 0, < 6.5 | Affected |
| schneider-electric | bmxnoc0401_firmware | >= 0, < 2.10 | Affected |
Frequently Asked Questions
What is CVE-2020-7539?
CVE-2020-7539 is a high-severity vulnerability affecting schneider-electric modicon_m340_bmxp341000_firmware. It was published on December 11, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-7539?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-7539?
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m340_bmxp341000_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-2020-7539?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-7539 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
AI agents map your attack surface to find vulnerabilities like this one.
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