CVE-2021-28216
edk2 - security update
7.8
HIGH
CVSS 3.1
EPSS 0.14%
Description
BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.
How to fix CVE-2021-28216
To remediate CVE-2021-28216, upgrade the affected package to a fixed version below.
- Debian/edk2—upgrade to 2020.11-2+deb11u3 or later
- Debian/edk2—upgrade to 2020.11-2+deb11u3 or later
Is CVE-2021-28216 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2020.11-2+deb11u3
- from 0, < 2020.11-2+deb11u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |