{"id":"CVE-2020-5668","state":"PUBLISHED","title":"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 e","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","publishedAt":"2020-11-20T03:30:23.000Z","updatedAt":"2024-08-04T08:39:25.511Z","severity":null,"assigner":"jpcert","products":["Mitsubishi Electric Corporation MELSEC iQ-R"],"affected":[{"vendor":"Mitsubishi Electric Corporation","product":"MELSEC iQ-R","versions":[{"version":"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","status":"affected"}]}],"references":["https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-016.pdf","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-016_en.pdf","https://us-cert.cisa.gov/ics/advisories/icsa-20-324-05","https://jvn.jp/vu/JVNVU95980140/index.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:35.543Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/5xxx/CVE-2020-5668.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-5668","state":"PUBLISHED","datePublished":"2020-11-20T03:30:23.000Z","dateUpdated":"2024-08-04T08:39:25.511Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2020-01-06T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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"}],"affected":[{"vendor":"Mitsubishi Electric Corporation","product":"MELSEC iQ-R","versions":[{"version":"R00/01/02CPU firmware version '19' and earlier, R04/08/16/32/120 (EN) CPU 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