{"id":"CVE-2021-29414","aliases":["EUVD-2021-16049","GHSA-4qww-78q9-prqg"],"status":"published","title":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","description":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00337,"percentile":0.27325,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2021-05-21T11:38:34Z","modified":"2026-06-17T03:47:35Z","products":[{"vendor":"st","product":"stm32cubel4_firmware"}],"references":[{"url":"https://www.sit.fraunhofer.de/en/news-events/downloads-services/cve/","tags":["x_refsource_MISC","x_transferred","Not Applicable"]},{"url":"https://eprint.iacr.org/2021/640","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29414"},{"url":"https://github.com/advisories/GHSA-4qww-78q9-prqg"}],"sources":{"cve":[{"id":"CVE-2021-29414","description":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","status":"published","published":"2021-05-21T11:38:34Z","modified":"2024-08-03T22:02:51.868Z","updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-16049","description":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","status":"published","published":"2021-05-21T11:38:34Z","modified":"2024-08-03T22:02:51Z","updated_at":"2026-11-03T03:24:45.000012Z"}],"ghsa":[{"id":"GHSA-4qww-78q9-prqg","title":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","description":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","status":"published","published":"2022-05-24T19:02:58Z","modified":"2023-01-29T05:06:44Z","cwes":["CWE-74"],"updated_at":"2026-11-02T14:46:05.419939Z"}],"nvd":[{"id":"CVE-2021-29414","description":"STMicroelectronics STM32L4 devices through 2021-03-29 have incorrect physical access control.","status":"published","published":"2021-05-21T12:15:07.923Z","modified":"2026-06-17T03:47:35.713Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:06:53.987491Z"}]}}