Intel® Processors MMIO Stale Data Vulnerability Information

Release Date: Jun 15, 2022
Updated: Jun 28, 2022

Intel published security information about Intel® Processors MMIO Stale Data Advisory.
We will show the information below.
Please be advised that the information will be changed or added without notice.

Vulnerability summary

Regarding details, please refer below Intel and Microsoft site.

- Intel site

- Microsoft site

According to above site, there are below four vulnerabilities.

  • CVE-2022-21123 - Shared Buffer Data Read (SBDR) 
  • CVE-2022-21125 - Shared Buffer Data Sampling (SBDS)
  • CVE-2022-21127 - Special Register Buffer Data Sampling Update (SRBDS Update)
  • CVE-2022-21166 - Device Register Partial Write (DRPW)

Content of countermeasure

We will inform you about the provision of firmware on this page.

Target model OS Countermeasure module
FZ-55[A/B/C] Windows 11
Windows 10
Released on Jun 28, 2022