The latest security information on Intel® products.
Firmware Authentication Bypass
||4th Gen Intel® Core™ Processor, 5th Gen Intel® Core™ Processor, 6th Gen Intel® Core™ Processor, and 7th Gen Intel® Core™ Processor|
|Impact of vulnerability:
||Escalation of Privilege
Potential security vulnerability allowing bypass of firmware authentication and incorrect TPM measurement of system firmware.
Platform sample code firmware included with 4th Gen Intel® Core™ Processor (Haswell), 5th Gen Intel® Core™ Processor (Broadwell), 6th Gen Intel® Core™ Processor (Skylake), and 7th Gen Intel® Core™ Processor (Kaby Lake) contains a logic error potentially allowing a physical attacker to bypass firmware authentication.
• High - 7.6 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Logic error in platform sample code firmware included with 4th Gen Intel® Core™ Processor (Haswell), 5th Gen Intel® Core™ Processor (Broadwell), 6th Gen Intel® Core™ Processor (Skylake), and 7th Gen Intel® Core™ Processor (Kaby Lake) potentially allows a physical attacker to exploit incorrect TPM measurement of system firmware.
• Medium 6.8 - CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• 4th Gen Intel® Core™ Processor
• 5th Gen Intel® Core™ Processor
• 6th Gen Intel® Core™ Processor
• 7th Gen Intel® Core™ Processor
Intel released updated firmware to address this issue and recommends that end-users contact their system manufacturers for updated system firmware.
Legal Notices and Disclaimers
Intel provides these materials as-is, with no express or implied warranties.
All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.
Intel, processors, chipsets, and desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request.
Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No computer system can be absolutely secure. Check with your system manufacturer or retailer or learn more at https://intel.com.
Some results have been estimated or simulated using internal Intel analysis or architecture simulation or modeling, and provided to you for informational purposes. Any differences in your system hardware, software or configuration may affect your actual performance.
Intel and the Intel logo are trademarks of Intel Corporation in the United States and other countries.
*Other names and brands may be claimed as the property of others.
Copyright © Intel Corporation 2020
Report a Vulnerability
If you have information about a security issue or vulnerability with an Intel branded product or technology, please send an e-mail to email@example.com. Encrypt sensitive information using our PGP public key.
Please provide as much information as possible, including:
- The products and versions affected
- Detailed description of the vulnerability
- Information on known exploits
A member of the Intel Product Security Team will review your e-mail and contact you to collaborate on resolving the issue. For more information on how Intel works to resolve security issues, see:
For issues related to Intel's external web presence (Intel.com and related subdomains), please contact Intel's External Security Research team.