{"id":"CVE-2020-0591","aliases":["EUVD-2020-2089","GHSA-jwxm-8hhc-59hv"],"status":"published","title":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged...","description":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00312,"percentile":0.24205,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2020-11-12T17:55:48Z","modified":"2026-06-17T02:46:06Z","products":[{"vendor":"intel","product":"bios"},{"vendor":"siemens","product":"simatic_cpu_1518-4_firmware"},{"vendor":"siemens","product":"simatic_cpu_1518f-4_firmware"}],"references":[{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00358","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20201113-0001/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-501073.pdf","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0591"},{"url":"https://github.com/advisories/GHSA-jwxm-8hhc-59hv"}],"sources":{"cve":[{"id":"CVE-2020-0591","description":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","status":"published","published":"2020-11-12T17:55:48Z","modified":"2024-08-04T06:11:04.398Z","updated_at":"2026-11-02T14:35:59.434367Z"}],"euvd":[{"id":"EUVD-2020-2089","description":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","status":"published","published":"2020-11-12T17:55:48Z","modified":"2024-08-04T06:11:04Z","updated_at":"2026-11-03T03:08:19.102243Z"}],"ghsa":[{"id":"GHSA-jwxm-8hhc-59hv","title":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged...","description":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","status":"published","published":"2022-05-24T17:33:28Z","modified":"2023-01-29T05:04:38Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:45:36.557586Z"}],"nvd":[{"id":"CVE-2020-0591","description":"Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","status":"published","published":"2020-11-12T18:15:13.237Z","modified":"2026-06-17T02:46:06.903Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:24.137599Z"}]}}