CVE-2021-28216
Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 05 Aug 2021, 20:44
Last modified:03 Nov 2025, 19:25
Vulnerability Summary
Overall Risk (default)
medium
41/100 CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.14% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
05 Aug 2021, 20:44
Published
Vulnerability first disclosed
03 Nov 2025, 19:25
Last Modified
Vulnerability information updated
Description
BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 0.14%• Percentile: 33%
Techniques & Countermeasures
- CWE-587•Assignment of a Fixed Address to a Pointer
The product sets a pointer to a specific address other than NULL or 0.
- CWE-763•Release of Invalid Pointer or Reference
The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.
Affected Systems
- tianocore•edk ii
EDK II Master | na