{"schemaVersion":3,"id":"CVE-2018-7527","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A buffer overflow can be triggered in LeviStudio HMI Editor, Version 1.10 part of Wecon LeviStudioU 1.8.29, and PI Studio HMI Project Programmer, Build: November 11, 2017 and prior by opening a specially crafted file.","dates":{"published":"2018-04-26T20:00:00.000Z","modified":"2024-09-16T23:46:12.317Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.8,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.8,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00709,"percentile":0.52904,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":-0.7699999999999999,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.01479},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01479,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00709,"percentile":0.52904}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.01479,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00723,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00709,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00709,"percentile":0.52904}]},"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-121","name":"Stack-based Buffer Overflow","description":"A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/121.html"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"we-con","product":"levistudio_hmi_editor_firmware","name":"levistudio hmi editor firmware","label":"levistudio_hmi_editor_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.10","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.10","eol":null,"hubHref":"/vendor/we-con/levistudio_hmi_editor"},{"vendor":"we-con","product":"levistudiou","name":"levistudiou","label":"levistudiou","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.8.29","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.8.29","eol":null,"hubHref":"/vendor/we-con/levistudiou"},{"vendor":"we-con","product":"pi_studio_hmi_project_programmer","name":"pi studio hmi project programmer","label":"pi_studio_hmi_project_programmer","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2017-11-11","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2017-11-11","eol":null,"hubHref":"/vendor/we-con/pi_studio_hmi_project_programmer"},{"vendor":"wecon technology co., ltd.","product":"levistudio hmi editor","name":"LeviStudio HMI Editor","label":"levistudio hmi editor","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"Version 1.10 part of Wecon LeviStudioU 1.8.29 and prior","noFixRecorded":false,"fixedIn":null}],"versionsText":"Version 1.10 part of Wecon LeviStudioU 1.8.29 and prior","eol":null,"hubHref":"/vendor/wecon_technology_co_ltd/levistudio_hmi_editor"},{"vendor":"wecon technology co., ltd.","product":"pi studio hmi project programmer","name":"PI Studio HMI Project Programmer","label":"pi studio hmi project programmer","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"Build: November 11, 2017 and prior","noFixRecorded":false,"fixedIn":null}],"versionsText":"Build: November 11, 2017 and prior","eol":null,"hubHref":"/vendor/wecon_technology_co_ltd/pi_studio_hmi_project_programmer"}],"affectedCount":5,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securityfocus.com/bid/104016","label":"www.securityfocus.com/bid/104016","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-116-02","label":"ics-cert.us-cert.gov/advisories/ICSA-18-116-02","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":"2018-04-26T20:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T23:46:12.317Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":27,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T07:50:04.400Z","stale":false,"partial":false}}