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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (62.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
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
- us-cert.cisa.gov/ics/advisories/icsa-20-345-01 (US Government Resource, Third Party Advisory)
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf (Vendor Advisory)
- www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf (Vendor Advisory)
- jvn.jp/vu/JVNVU95638588/index.html (Third Party Advisory)
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.