The latest security information on Intel® products.

Local APIC Elevation of Privilege

Intel ID INTEL-SA-00045
Product family Intel® Server Board S5500HC Family, Intel® Server Board S5500HCT Family, Intel® Server Board S7000 Family, Intel® Workstation Board S5520SC Family
Impact of vulnerability Elevation of Privilege
Severity rating Important
Original release Aug 04, 2015
Last revised Sep 03, 2015


Intel is releasing mitigations for a privilege escalation issue. This issue affects certain Intel processors based on older Intel micro-architectures. The issue identified is a method that enables malicious code to gain access to System Management Mode (SMM).


An issue was disclosed to Intel which leverages architectural differences in processors prior to 2nd Generation Intel® Core™ Processors to gain access to System Management Mode (SMM). Administrator or root level privileges are required to execute the attack.

Affected products:


Intel highly recommends applying the mitigations.


Intel would like to acknowledge Christopher Domas of Battelle for working with us on this coordinated disclosure.

Revision history:






Initial Release



Added Intel products

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