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Intel® SGX SDK Advisory

Intel ID: INTEL-SA-00548
Advisory Category: Software
Impact of vulnerability: Escalation of Privilege
Severity rating: HIGH
Original release: 10/12/2021
Last revised: 10/12/2021


A potential security vulnerability in Intel® Software Guard Extensions (SGX) Software Development Kit (SDK)applications compiled for SGX2-enabled processors may allow escalation of privilege.  Intel is releasing software updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2021-0186

Description: Improper input validation in the Intel(R) SGX SDK applications compiled for SGX2 enabled processors may allow a privileged user to potentially escalation of privilege via local access.

CVSS Base Score: 8.2 High


Affected Products:

Intel SGX SDK for Windows v2.12 and earlier.

Intel SGX SDK for Linux v2.13 and earlier.

Intel® Processors supporting SGX2:

Code Name

Product Collection

Ice Lake Xeon-SP (HCC, XCC)

3rd Gen Intel® Xeon® Scalable processor family

Ice Lake

10th Generation Intel® Core™ Processor Family

Gemini Lake

Intel® Pentium® Processor Silver Series, Intel® Celeron® Processor J Series, Intel® Celeron® Processor N Series


Intel recommends updating the Intel® SGX SDK to the versions listed below. Enclaves built with the new Intel® SGX SDK version should increment the value of their ISVSVN field.

Intel® SGX SDK for Windows to version 2.13 or later:

Intel® SGX SDK for Linux to version 2.14 or later:


Intel would like to thank Jinhua Cui, National University of Defense Technology and National University of Singapore, Shweta Shinde, ETH Zurich , Zhijingcheng Yu, National University of Singapore, and Prateek Saxena, National University of Singapore for reporting this issue.

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 10/12/2021 Initial Release

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