{"id":"CVE-2021-0158","title":"Improper input validation in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","summary":"Improper input validation in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-20"],"vendor":"intel","product":"celeron_n2805","affected":["celeron_n2805","celeron_n2806","celeron_n2807","celeron_n2808","celeron_n2810","celeron_n2815","celeron_n2820","celeron_n2830","celeron_n2840","celeron_n2910","celeron_n2920","celeron_n2930","celeron_n2940","celeron_n3000","celeron_n3010","celeron_n3050","celeron_n3060","celeron_n3150","celeron_n3160","celeron_n3350","celeron_n3350e","celeron_n3450","celeron_n4000","celeron_n4020","celeron_n4100","celeron_n4120","celeron_n4500","celeron_n4505","celeron_n5100","celeron_n5105","celeron_n6210","celeron_n6211","core_i3-1000g1","core_i3-1000g4","core_i3-1005g1","core_i3-10100","core_i3-10100e","core_i3-10100f","core_i3-10100t","core_i3-10100te","core_i3-10100y","core_i3-10105","core_i3-10105f","core_i3-10105t","core_i3-10110u","core_i3-10110y","core_i3-10300","core_i3-10300t","core_i3-10305","core_i3-10305t","core_i3-10320","core_i3-10325","core_i3-11100he","core_i3-1110g4","core_i3-1115g4","core_i3-1115g4e","core_i3-1115gre","core_i3-1120g4","core_i3-1125g4","core_i3-7020u","core_i3-7100","core_i3-7100e","core_i3-7100h","core_i3-7100t","core_i3-7100u","core_i3-7101e","core_i3-7101te","core_i3-7102e","core_i3-7130u","core_i3-7167u","core_i3-7300","core_i3-7300t","core_i3-7320","core_i3-7350k","core_i3-8100","core_i3-8100b","core_i3-8100h","core_i3-8100t","core_i3-8109u","core_i3-8130u","core_i3-8140u","core_i3-8145u","core_i3-8145ue","core_i3-8300","core_i3-8300t","core_i3-8350k","core_i5-10200h","core_i5-10210u","core_i5-10210y","core_i5-10300h","core_i5-1030g4","core_i5-1030g7","core_i5-10310u","core_i5-10310y","core_i5-1035g1","core_i5-1035g4","core_i5-1035g7","core_i5-1038ng7","core_i5-10400","core_i5-10400f"],"published":"2021-11-17","updated":"2026-10-07","sourceUpdated":"2026-10-07T18:17:10.400","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-0158","references":[{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00562.html","label":"secure@intel.com"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00562.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-07T17:53:20.495484Z"},"epss":0.03023,"epssPercentile":0.87054,"ingestedAt":"2026-10-07T18:42:20.873Z","slug":"CVE-2021-0158","body":"## Overview\n\nImproper input validation in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.\n\n## Affected\n\n- `celeron_n2805`\n- `celeron_n2806`\n- `celeron_n2807`\n- `celeron_n2808`\n- `celeron_n2810`\n- `celeron_n2815`\n- `celeron_n2820`\n- `celeron_n2830`\n- `celeron_n2840`\n- `celeron_n2910`\n- `celeron_n2920`\n- `celeron_n2930`\n- `celeron_n2940`\n- `celeron_n3000`\n- `celeron_n3010`\n- `celeron_n3050`\n- `celeron_n3060`\n- `celeron_n3150`\n- `celeron_n3160`\n- `celeron_n3350`\n- `celeron_n3350e`\n- `celeron_n3450`\n- `celeron_n4000`\n- `celeron_n4020`\n- `celeron_n4100`\n- `celeron_n4120`\n- `celeron_n4500`\n- `celeron_n4505`\n- `celeron_n5100`\n- `celeron_n5105`\n- `celeron_n6210`\n- `celeron_n6211`\n- `core_i3-1000g1`\n- `core_i3-1000g4`\n- `core_i3-1005g1`\n- `core_i3-10100`\n- `core_i3-10100e`\n- `core_i3-10100f`\n- `core_i3-10100t`\n- `core_i3-10100te`\n- `core_i3-10100y`\n- `core_i3-10105`\n- `core_i3-10105f`\n- `core_i3-10105t`\n- `core_i3-10110u`\n- `core_i3-10110y`\n- `core_i3-10300`\n- `core_i3-10300t`\n- `core_i3-10305`\n- `core_i3-10305t`\n- `core_i3-10320`\n- `core_i3-10325`\n- `core_i3-11100he`\n- `core_i3-1110g4`\n- `core_i3-1115g4`\n- `core_i3-1115g4e`\n- `core_i3-1115gre`\n- `core_i3-1120g4`\n- `core_i3-1125g4`\n- `core_i3-7020u`\n- `core_i3-7100`\n- `core_i3-7100e`\n- `core_i3-7100h`\n- `core_i3-7100t`\n- `core_i3-7100u`\n- `core_i3-7101e`\n- `core_i3-7101te`\n- `core_i3-7102e`\n- `core_i3-7130u`\n- `core_i3-7167u`\n- `core_i3-7300`\n- `core_i3-7300t`\n- `core_i3-7320`\n- `core_i3-7350k`\n- `core_i3-8100`\n- `core_i3-8100b`\n- `core_i3-8100h`\n- `core_i3-8100t`\n- `core_i3-8109u`\n- `core_i3-8130u`\n- `core_i3-8140u`\n- `core_i3-8145u`\n- `core_i3-8145ue`\n- `core_i3-8300`\n- `core_i3-8300t`\n- `core_i3-8350k`\n- `core_i5-10200h`\n- `core_i5-10210u`\n- `core_i5-10210y`\n- `core_i5-10300h`\n- `core_i5-1030g4`\n- `core_i5-1030g7`\n- `core_i5-10310u`\n- `core_i5-10310y`\n- `core_i5-1035g1`\n- `core_i5-1035g4`\n- `core_i5-1035g7`\n- `core_i5-1038ng7`\n- `core_i5-10400`\n- `core_i5-10400f`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}