{"schemaVersion":3,"id":"CVE-2019-14238","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.","dates":{"published":"2019-09-24T18:00:20.000Z","modified":"2024-08-05T00:12:43.284Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.6,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:P/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":6.6,"severity":"medium","vector":"CVSS:3.1/AV:P/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":0.00401,"percentile":0.32901,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00401},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00401,"percentile":0.32901}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00401,"percentile":0.32901}]},"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":[{"id":"REF_3253287310C2E0A9","name":"Exploit Reference (usenix.org)","source":"reference","url":"https://www.usenix.org/system/files/woot19-paper_schink.pdf","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"REF_C5ED574B05CDD325","name":"Exploit Reference (usenix.org)","source":"reference","url":"https://www.usenix.org/conference/woot19/presentation/schink","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":2,"weaknesses":[{"id":"CWE-287","name":"Improper Authentication","description":"When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/287.html"}],"affected":[{"vendor":"st","product":"stm32f4_firmware","name":"stm32f4 firmware","label":"stm32f4_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32f4"},{"vendor":"st","product":"stm32f7_firmware","name":"stm32f7 firmware","label":"stm32f7_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32f7"},{"vendor":"st","product":"stm32h7_firmware","name":"stm32h7 firmware","label":"stm32h7_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32h7"},{"vendor":"st","product":"stm32l0_firmware","name":"stm32l0 firmware","label":"stm32l0_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32l0"},{"vendor":"st","product":"stm32l1_firmware","name":"stm32l1 firmware","label":"stm32l1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32l1"},{"vendor":"st","product":"stm32l4_firmware","name":"stm32l4 firmware","label":"stm32l4_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/st/stm32l4"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.usenix.org/system/files/woot19-paper_schink.pdf","label":"www.usenix.org/system/files/woot19-paper_schink.pdf","hostname":"www.usenix.org","tags":["X Refsource MISC","Exploit","Mitigation","Third Party Advisory"]},{"url":"https://www.usenix.org/conference/woot19/presentation/schink","label":"www.usenix.org/conference/woot19/presentation/schink","hostname":"www.usenix.org","tags":["X Refsource MISC","Exploit","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-09-24T18:00:20.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T00:12:43.284Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:27:17.636Z","stale":false,"partial":false}}