CVE-2021-28216
HighPublic PoC
Published: 05 August 2021
Published
05 August 2021
Modified
03 November 2025
KEV Added
—
Patch
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CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0014
33.4th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-28216 is a high-severity Assignment of a Fixed Address to a Pointer (CWE-587) vulnerability in Tianocore Edk Ii. Its CVSS base score is 7.8 (High).
Operationally, ranked at the 33.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-14906
Vulnerability details
BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
tianocore
edk ii
all versions
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.