{"schemaVersion":3,"id":"CVE-2023-43504","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability has been identified in COMOS (All versions < V10.4.4). Ptmcast executable used for testing cache validation service in affected application is vulnerable to Structured Exception Handler (SEH) based buffer overflow. This could allow an attacker to execute arbitrary code on the target system or cause denial of service condition.","dates":{"published":"2023-11-14T11:03:46.350Z","modified":"2025-01-08T16:40:40.776Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.6,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00851,"percentile":0.57469,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.00851},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00851,"percentile":0.57469}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00851,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00851,"percentile":0.57469}]},"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":"siemens","product":"comos","name":"comos","label":"comos","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V10.4.4","noFixRecorded":false,"fixedIn":null},{"text":"< 10.4.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V10.4.4 | < 10.4.4","eol":null,"hubHref":"/vendor/siemens/comos"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-137900.pdf","label":"cert-portal.siemens.com/productcert/pdf/ssa-137900.pdf","hostname":"cert-portal.siemens.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-11-14T11:03:46.350Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-01-08T16:40:40.776Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T13:29:12.798Z","stale":false,"partial":false}}