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2021.2 IPU - Intel® Processor Breakpoint Control Flow Advisory

Intel ID: INTEL-SA-00532
Advisory Category: Firmware
Impact of vulnerability: Denial of Service
Severity rating: MEDIUM
Original release: 02/08/2022
Last revised: 02/08/2022


A potential security vulnerability in some Intel® processors that may allow a denial of service.  Intel® is releasing firmware updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2021-0127

Description: Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to potentially enable a denial of service via local access

CVSS Base Score: 5.6 Medium


Affected Products:

  • 6th Generation Intel® Core™ Processors
  • 7th Generation Intel® Core™ Processor Family
  • 8th Generation Intel® Core™ Processor Family
  • 9th Generation Intel® Core™ Processor Family
  • 10th Generation Intel® Core™ Processor Family
  • Intel® Celeron® Processor G Series
  • Intel® Core™ X-series Processors
  • Intel® Pentium® Gold Processor Series
  • Intel® Xeon® Scalable Processors
  • 2nd Generation Intel® Xeon® Scalable Processors
  • 3rd Generation Intel® Xeon® Scalable Processors
  • Intel® Xeon® Processor W Family
  • Intel® Xeon® Processor E Family
  • Intel® Xeon® Processor E3 v6 Family
  • Intel® Xeon® Processor D Family
  • Intel ® Xeon® Platinum 81xxD
  • Intel® Xeon® Processor E3 v5 Family


Intel recommends that users of the above listed Intel® Processors update to the latest firmware version provided by the system manufacturer that addresses this issue.


This issue was found externally.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.

Revision History

Revision Date Description
1.0 02/08/2022 Initial Release

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