Home/CVE/Improper access control in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user t
CVE

CVE-2021-33123

Improper access control in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user t

Improper access control 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.

HIGH · CVSS 7.8 EPSS 0.00137
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

60
intel xeon bronze 3206r firmwareall versions
intel xeon gold 5218r firmwareall versions
intel xeon gold 5220r firmwareall versions
intel xeon gold 6208u firmwareall versions
intel xeon gold 6226r firmwareall versions
intel xeon gold 6230r firmwareall versions
intel xeon gold 6238r firmwareall versions
intel xeon gold 6240r firmwareall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secure@intel.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 May 2022 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.netapp.com/advisory/ntap-20220818-0003/Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00601.htmlVendor Advisory
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