CVE-2020-5527
7.5 · HIGHOverview
CVE-2020-5527 is a high-severity vulnerability affecting mitsubishielectric cr800-q_firmware. It was published on March 30, 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
When MELSOFT transmission port (UDP/IP) of Mitsubishi Electric MELSEC iQ-R series (all versions), MELSEC iQ-F series (all versions), MELSEC Q series (all versions), MELSEC L series (all versions), and MELSEC F series (all versions) receives massive amount of data via unspecified vectors, resource consumption occurs and the port does not process the data properly. As a result, it may fall into a denial-of-service (DoS) condition. The vendor states this vulnerability only affects Ethernet communication functions.
Remediation
Check the references section for vendor advisories and patches from mitsubishielectric. Update cr800-q_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 |
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Frequently Asked Questions
What is CVE-2020-5527?
CVE-2020-5527 is a high-severity vulnerability affecting mitsubishielectric cr800-q_firmware. It was published on March 30, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-5527?
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-2020-5527?
Check the references section for vendor advisories and patches from mitsubishielectric. Update cr800-q_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-2020-5527?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-5527 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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