What’s Vulnerable › Vulnerabilities
CVE-2023-1424: Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-05-24 · updated 2026-06-17
- Weakness: CWE-120
Description
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.
Affected products
- Mitsubishielectric Melsec Iq-Fx5U-32Mr/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mr/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mr/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mr/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mt/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mt/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mt/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-32Mt/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mr/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mr/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mr/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mr/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mt/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mt/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mt/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-64Mt/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mr/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mr/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mr/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mr/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mt/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mt/Dss Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mt/Es Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5U-80Mt/Ess Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mr/Dds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mr/Ds-Ts Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mr/Ds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mt/Dds Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mt/Ds-Ts Firmware: all versions
- Mitsubishielectric Melsec Iq-Fx5Uc-32Mt/Ds Firmware: all versions
References
- https://jvn.jp/vu/JVNVU94650413
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-143-03
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-003_en.pdf
- https://jvn.jp/vu/JVNVU94650413
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-143-03
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-003_en.pdf
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1727
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