Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2020-5665
- cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5665
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5665
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.3
|
LOW | AV:A/AC:L/Au:N/C:N/I:N/A:P |
6.5
|
2.9
|
NIST | |
|
7.4
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
2.8
|
4.0
|
NIST |
References for CVE-2020-5665
-
https://jvn.jp/vu/JVNVU95638588/index.html
JVNVU#95638588: 三菱電機製 MELSEC iQ-F シリーズにおけるサービス運用妨害 (DoS) の脆弱性Third Party Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01
Mitsubishi Electric MELSEC iQ-F Series | CISAThird Party Advisory;US Government Resource
-
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf
MITSUBISHI ELECTRIC Global websiteVendor Advisory
-
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf
Vendor Advisory
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