CVE-2020-16850
7.5 · HIGHOverview
CVE-2020-16850 is a high-severity vulnerability affecting mitsubishielectric r00cpu_firmware. It was published on November 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
Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halting, physical access to the PLC is required in order to restore production, and the device state is lost. This is related to R04CPU, RJ71GF11-T2, R04CPU, and RJ71GF11-T2.
Remediation
Check the references section for vendor advisories and patches from mitsubishielectric. Update r00cpu_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 |
|---|---|---|---|
| mitsubishielectric | r00cpu_firmware | 0 | Affected |
| mitsubishielectric | r01cpu_firmware | 0 | Affected |
| mitsubishielectric | r02cpu_firmware | 0 | Affected |
| mitsubishielectric | r04cpu_firmware | 0 | Affected |
| mitsubishielectric | r08cpu_firmware | 0 | Affected |
| mitsubishielectric | r16cpu_firmware | 0 | Affected |
| mitsubishielectric | r32cpu_firmware | 0 | Affected |
| mitsubishielectric | r120cpu_firmware | 0 | Affected |
| mitsubishielectric | r08sfcpu_firmware | 0 | Affected |
| mitsubishielectric | r16sfcpu_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2020-16850?
CVE-2020-16850 is a high-severity vulnerability affecting mitsubishielectric r00cpu_firmware. It was published on November 30, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-16850?
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-2020-16850?
Check the references section for vendor advisories and patches from mitsubishielectric. Update r00cpu_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-2020-16850?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-16850 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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