{"cve":"CVE-2020-5668","nvd":{"published":"2020-11-20T04:15:11.423","modified":"2026-06-17T03:22:04.080","status":"Modified","description":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series modules (R00/01/02CPU firmware version '19' and earlier, R04/08/16/32/120 (EN) CPU firmware version '51' and earlier, R08/16/32/120SFCPU firmware version '22' and earlier, R08/16/32/120PCPU firmware version '25' and earlier, R08/16/32/120PSFCPU firmware version '06' and earlier, RJ71EN71 firmware version '47' and earlier, RJ71GF11-T2 firmware version '47' and earlier, RJ72GF15-T2 firmware version '07' and earlier, RJ71GP21-SX firmware version '47' and earlier, RJ71GP21S-SX firmware version '47' and earlier, and RJ71GN11-T2 firmware version '11' and earlier) allows a remote unauthenticated attacker to cause an error in a CPU unit and cause a denial-of-service (DoS) condition in execution of the program and its communication, or to cause a denial-of-service (DoS) condition in communication via the unit by receiving a specially crafted SLMP packet","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://jvn.jp/vu/JVNVU95980140/index.html","https://us-cert.cisa.gov/ics/advisories/icsa-20-324-05","https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-016.pdf","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-016_en.pdf","https://jvn.jp/vu/JVNVU95980140/index.html"],"products":["mitsubishielectric:r00cpu_firmware","mitsubishielectric:r01cpu_firmware","mitsubishielectric:r02cpu_firmware","mitsubishielectric:r04cpu_firmware","mitsubishielectric:r08cpu_firmware","mitsubishielectric:r08pcpu_firmware","mitsubishielectric:r08psfcpu_firmware","mitsubishielectric:r08sfcpu_firmware","mitsubishielectric:r120cpu_firmware","mitsubishielectric:r120pcpu_firmware","mitsubishielectric:r120psfcpu_firmware","mitsubishielectric:r120sfcpu_firmware","mitsubishielectric:r16cpu_firmware","mitsubishielectric:r16pcpu_firmware","mitsubishielectric:r16psfcpu_firmware","mitsubishielectric:r16sfcpu_firmware","mitsubishielectric:r32cpu_firmware","mitsubishielectric:r32pcpu_firmware","mitsubishielectric:r32psfcpu_firmware","mitsubishielectric:r32sfcpu_firmware","mitsubishielectric:rj71c24-r2_firmware","mitsubishielectric:rj71c24-r4_firmware","mitsubishielectric:rj71en71_firmware","mitsubishielectric:rj71gf11-t2_firmware","mitsubishielectric:rj71gn11-t2_firmware","mitsubishielectric:rj71gp21-sx_firmware","mitsubishielectric:rj71gp21s-sx_firmware","mitsubishielectric:rj72gf15-t2_firmware"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-5668","score":0.04935,"percentile":0.92141,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}