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CVE-2021-28216 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2021-28216

CVE-2021-28216

HIGH7.8

BootPerformanceTable pointer is read from an NVRAM variable in PEI

Published Aug 5, 2021

Modified 5 months ago

Details

BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.

References

https://bugzilla.tianocore.org/show_bug.cgi?id=2957

https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html

https://www.cve.org/CVERecord?id=CVE-2021-28216

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedAug 5, 2021

ModifiedNov 3, 2025