CVE-2021-33103

MEDIUMNVD 6.76.7—

6.7

Unintended intermediary in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.

CVSS v3: 6.7
EG Score: 6.7(medium)
EPSS: 24.7%
KEV: Not listed

Published

May 12, 2022

Last Modified

May 5, 2025

References (4)

secure@intelhttps://security.netapp.com/advisory/ntap-20220818-0003/
secure@intelhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00601.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220818-0003/
af854a3a-2127-422b-91ae-364da2661108https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00601.html

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-33103?

CVE-2021-33103 is a medium vulnerability published on May 12, 2022. Unintended intermediary in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.

When was CVE-2021-33103 disclosed?

CVE-2021-33103 was first published in the National Vulnerability Database on May 12, 2022, with the most recent update on May 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-33103 actively exploited?

CVE-2021-33103 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-33103?

CVE-2021-33103 has a CVSS v3 base score of 6.7 (NVD).

How do I remediate CVE-2021-33103?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-33103, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2021-33103

📅 Published

🔄 Last Modified

🔗 References (4)