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TI-2021-09442 Aliases CVE-2021-28216GHSA-6wgv-vj43-rpr5

BootPerformanceTable pointer is read from an NVRAM variable in PEI.

Priority LOW 34CWE-587Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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

Why it matters now

EPSS 0.00423 36th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TianoCoreEDK IIEDK II Master—No fix listedCNA
  • EDK II VendorTianoCore Affected EDK II Master Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tianocore:edk_ii:-:*:*:*:*:*:*:*not specified by NVDVulnerableTianoCore
  • cpe:2.3:a:tianocore:edk_ii:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TianoCore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28216
  2. 2026-10-03 Alias added: GHSA-6wgv-vj43-rpr5

References

Exploit 1

  • TI-2019-00139 Buffer overflow in Extensible Firmware Interface Development Kit CVSS 3.1CRITICAL 9.8
  • TI-2018-08727 Memory corruption in TianoCore Extensible Firmware Interface Development Kit CVSS 3.0CRITICAL 9.1
  • TI-2018-08729 Out-of-bounds write in TianoCore Extensible Firmware Interface Development Kit CVSS 3.0HIGH 8.8
  • TI-2018-08728 Improper configuration in system firmware for EDK II may allow unauthenticated user to… CVSS 3.0HIGH 7.8
  • TI-2018-02649 Logic issue in variable service module for EDK II/UDK2018/UDK2017/UDK2015 may allow an… CVSS 3.0HIGH 7.8
  • TI-2018-08732 Out-of-bounds write in TianoCore Extensible Firmware Interface Development Kit CVSS 3.0MEDIUM 6.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences