Vulnerability in Mitsubishielectric Melsec Iq-F Fx5u CPU
CVE-2020-5665
Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.
EPSS: 0.010 (58.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Mitsubishielectric Melsec_iq-f_fx5u_cpu
- Mitsubishielectric Melsec_iq-f_fx5u_cpu_firmware
- Mitsubishi Electric Corporation Melsec Iq-f Series Fx5u(c) Cpu Unit — versions firmware version 1.060 and earlier
References
- vultures@jpcert.or.jp (US Government Resource, Third Party Advisory, x_refsource_MISC)
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-5665?
- CVE-2020-5665 is a high-severity vulnerability in Mitsubishielectric Melsec Iq-F Fx5u CPU. CVSS score: 7.4/10. Published 2020-12-14.
- How severe is CVE-2020-5665?
- High severity. CVSS v3 base score is 7.4 out of 10.