{"schemaVersion":3,"id":"CVE-2018-8834","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a heap-based buffer overflow.","dates":{"published":"2018-04-17T19:00:00.000Z","modified":"2024-09-16T19:25:23.504Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.6,"severity":"medium","vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00318,"percentile":0.23474,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":-0.0020000000000000052,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.0032},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00318,"percentile":0.23474}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0032,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00318,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00318,"percentile":0.23474}]},"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-122","name":"Heap-based Buffer Overflow","description":"A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/122.html"},{"id":"CWE-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"ics-cert","product":"omron cx-one","name":"Omron CX-One","label":"omron cx-one","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"The following versions of CX-One are affected: CX-One Versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior.","noFixRecorded":false,"fixedIn":null}],"versionsText":"The following versions of CX-One are affected: CX-One Versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior.","eol":null,"hubHref":"/vendor/ics-cert/omron_cx-one"},{"vendor":"omron","product":"cx-flnet","name":"cx-flnet","label":"cx-flnet","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.00","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.00","eol":null,"hubHref":"/vendor/omron/cx-flnet"},{"vendor":"omron","product":"cx-one","name":"cx-one","label":"cx-one","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 4.42","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 4.42","eol":null,"hubHref":"/vendor/omron/cx-one"},{"vendor":"omron","product":"cx-programmer","name":"cx-programmer","label":"cx-programmer","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 9.65","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 9.65","eol":null,"hubHref":"/vendor/omron/cx-programmer"},{"vendor":"omron","product":"cx-protocol","name":"cx-protocol","label":"cx-protocol","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.992","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.992","eol":null,"hubHref":"/vendor/omron/cx-protocol"},{"vendor":"omron","product":"cx-server","name":"cx-server","label":"cx-server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 5.0.22","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 5.0.22","eol":null,"hubHref":"/vendor/omron/cx-server"},{"vendor":"omron","product":"network_configurator","name":"network configurator","label":"network_configurator","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 3.63","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 3.63","eol":null,"hubHref":"/vendor/omron/network_configurator"},{"vendor":"omron","product":"switch_box_utility","name":"switch box utility","label":"switch_box_utility","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.68","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.68","eol":null,"hubHref":"/vendor/omron/switch_box_utility"}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-100-02","label":"ics-cert.us-cert.gov/advisories/ICSA-18-100-02","hostname":"ics-cert.us-cert.gov","tags":["X Refsource MISC","Third Party Advisory","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-04-17T19:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T19:25:23.504Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T21:12:30.160Z","stale":false,"partial":false}}