CVE-2022-40265
8.6 · HIGHOverview
CVE-2022-40265 is a high-severity vulnerability affecting mitsubishielectric rj71en71_firmware. It was published on November 30, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Improper Input Validation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series RJ71EN71 Firmware version "65" and prior and Mitsubishi Electric Corporation MELSEC iQ-R Series R04/08/16/32/120ENCPU Network Part Firmware version "65" and prior allows a remote unauthenticated attacker to cause a Denial of Service condition by sending specially crafted packets. A system reset is required for recovery.
Remediation
Check the references section for vendor advisories and patches from mitsubishielectric. Update rj71en71_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 | rj71en71_firmware | 0 | Affected |
| mitsubishielectric | r04encpu_firmware | 0 | Affected |
| mitsubishielectric | r08encpu_firmware | 0 | Affected |
| mitsubishielectric | r16encpu_firmware | 0 | Affected |
| mitsubishielectric | r32encpu_firmware | 0 | Affected |
| mitsubishielectric | r120encpu_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2022-40265?
CVE-2022-40265 is a high-severity vulnerability affecting mitsubishielectric rj71en71_firmware. It was published on November 30, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2022-40265?
This vulnerability has a CVSS 3.1 base score of 8.6, 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-2022-40265?
Check the references section for vendor advisories and patches from mitsubishielectric. Update rj71en71_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-2022-40265?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-40265 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.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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