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Vulnerability record · CVE-2021-0158 · published 17 November 2021

CVE-2021-0158: Intel celeron n2805 improper input validation vulnerability

Intel · Celeron N2805

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.

6.7 CVSS 3.1 Medium EPSS 3.0% · top 13.0% CWE-20 · Improper input validation
6.7CVSS 3.1 base score, v2 4.6
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
150Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00562.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00562.html Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-0158), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.