{"id":"CVE-2020-6986","state":"PUBLISHED","title":"In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in t","description":"In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result.","publishedAt":"2020-03-05T20:05:05.000Z","updatedAt":"2026-06-02T19:52:04.759Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"icscert","products":["n/a Omron PLC CJ Series"],"affected":[{"vendor":"n/a","product":"Omron PLC CJ Series","versions":[{"version":"all versions","status":"affected"}]}],"references":["https://www.us-cert.gov/ics/advisories/icsa-20-063-03"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T19:47:38.312Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/6xxx/CVE-2020-6986.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2020-6986","state":"PUBLISHED","datePublished":"2020-03-05T20:05:05.000Z","dateUpdated":"2026-06-02T19:52:04.759Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2020-01-14T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result."}],"affected":[{"vendor":"n/a","product":"Omron PLC CJ Series","versions":[{"version":"all versions","status":"affected"}]}],"references":[{"url":"https://www.us-cert.gov/ics/advisories/icsa-20-063-03","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"UNCONTROLLED RESOURCE CONSUMPTION CWE-400","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","dateUpdated":"2020-03-05T20:05:05.000Z","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"ics-cert@hq.dhs.gov","ID":"CVE-2020-6986","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Omron PLC CJ Series","version":{"version_data":[{"version_value":"all versions"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"UNCONTROLLED RESOURCE CONSUMPTION CWE-400"}]}]},"references":{"reference_data":[{"name":"https://www.us-cert.gov/ics/advisories/icsa-20-063-03","refsource":"MISC","url":"https://www.us-cert.gov/ics/advisories/icsa-20-063-03"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.us-cert.gov/ics/advisories/icsa-20-063-03","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T09:18:02.467Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-02T19:51:15.358862Z","id":"CVE-2020-6986","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-02T19:52:04.759Z"}}]}}}