{"schemaVersion":3,"id":"CVE-2023-6711","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Vulnerability exists in SCI IEC 60870-5-104 and HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Specially crafted messages sent to the mentioned components are not validated properly and can result in buffer overflow and as final consequence to a reboot of an RTU500 CMU.","dates":{"published":"2023-12-19T14:53:44.658Z","modified":"2024-09-25T08:43:52.208Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.9,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00669,"percentile":0.51309,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00669},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00669,"percentile":0.51309}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00669,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00669,"percentile":0.51309}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/120.html"}],"affected":[{"vendor":"hitachi energy","product":"rtu500 series cmu firmware","name":"RTU500 series CMU Firmware","label":"rtu500 series cmu firmware","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 12.0.1, ≤ 12.0.14","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.2.1, ≤ 12.2.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.4.1, ≤ 12.4.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.6.1, ≤ 12.6.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.7.1, ≤ 12.7.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.2.1, ≤ 13.2.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.4.1, ≤ 13.4.3","noFixRecorded":false,"fixedIn":null},{"text":"13.5.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 12.0.1, ≤ 12.0.14 | ≥ 12.2.1, ≤ 12.2.11 | ≥ 12.4.1, ≤ 12.4.11 | ≥ 12.6.1, ≤ 12.6.9 | ≥ 12.7.1, ≤ 12.7.6 | ≥ 13.2.1, ≤ 13.2.6 | ≥ 13.4.1, ≤ 13.4.3 | 13.5.1","eol":null,"hubHref":"/vendor/hitachi_energy/rtu500_series_cmu_firmware"},{"vendor":"hitachienergy","product":"rtu500_firmware","name":"rtu500 firmware","label":"rtu500_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ 12.0.1.0, < 12.0.15.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.2.1.0, < 12.2.12.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.4.1.0, < 12.4.12.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.6.1.0, < 12.6.10.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.7.1.0, < 12.7.7.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.2.1.0, < 13.2.7.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.4.1.0, < 13.4.4.0","noFixRecorded":false,"fixedIn":null},{"text":"13.5.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 12.0.1.0, < 12.0.15.0 | ≥ 12.2.1.0, < 12.2.12.0 | ≥ 12.4.1.0, < 12.4.12.0 | ≥ 12.6.1.0, < 12.6.10.0 | ≥ 12.7.1.0, < 12.7.7.0 | ≥ 13.2.1.0, < 13.2.7.0 | ≥ 13.4.1.0, < 13.4.4.0 | 13.5.1.0","eol":null,"hubHref":"/vendor/hitachienergy/rtu500"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://publisher.hitachienergy.com/preview?DocumentId=8DBD000184&languageCode=en&Preview=true","label":"publisher.hitachienergy.com/preview?DocumentId=8DBD000184&languageCode=en&Preview=true","hostname":"publisher.hitachienergy.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-12-19T14:53:44.658Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-25T08:43:52.208Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T20:12:01.632Z","stale":false,"partial":false}}