CVE-2021-22785
7.5 · HIGHOverview
CVE-2021-22785 is a high-severity vulnerability affecting schneider-electric modicon_m340_bmxp342020_firmware. It was published on February 11, 2022 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-200: Information Exposure vulnerability exists that could cause sensitive information of files located in the web root directory to leak when an attacker sends a HTTP request to the web server of the device. Affected Product: Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)
Remediation
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m340_bmxp342020_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_bmxp342020_firmware | >= 0, < 3.40 | Affected |
Frequently Asked Questions
What is CVE-2021-22785?
CVE-2021-22785 is a high-severity vulnerability affecting schneider-electric modicon_m340_bmxp342020_firmware. It was published on February 11, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-22785?
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-2021-22785?
Check the references section for vendor advisories and patches from schneider-electric. Update modicon_m340_bmxp342020_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-2021-22785?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-22785 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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