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Intel® AMT and Intel® ISM Advisory

Intel ID: INTEL-SA-00404
Advisory Category: Firmware
Impact of vulnerability: Escalation of Privilege
Severity rating: CRITICAL
Original release: 09/08/2020
Last revised: 01/22/2021


Potential security vulnerability in Intel® Active Management Technology (AMT), and Intel® Standard Manageability (ISM) may allow escalation of privilege.  Intel is releasing firmware updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2020-8758

Description: Improper buffer restrictions in network subsystem in provisioned Intel(R) AMT and Intel(R) ISM versions before 11.8.79, 11.12.79, 11.22.79, 12.0.68 and 14.0.39 may allow an unauthenticated user to potentially enable escalation of privilege via network access.  On un-provisioned systems, an authenticated user may potentially enable escalation of privilege via local access.

CVSS Vector (Provisioned, unauthenticated, network):

CVSS Base Score: 9.8 Critical


CVSS Vector (Un-provisioned, authenticated, local):

CVSS Base Score: 7.8



Affected Products:

Intel® AMT and Intel® ISM versions before 11.8.79, 11.12.79, 11.22.79, 12.0.68 and 14.0.39.

The following CVE assigned by Intel, corresponds to a CVE disclosed on 12/18/2020 as part of ICSA-20-353-01:

Disclosed in INTEL-SA-00404

Disclosed in ICSA-20-353-01




Note: Firmware versions of Intel® ME 3.x thru 10.x, Intel® TXE 1.x thru 2.x, and Intel® Server Platform Services 1.x thru 2.X are no longer supported versions. There is no new general release planned for these versions.


Intel recommends that users of Intel® AMT and Intel® ISM update to the latest version provided by the system manufacturer that addresses these issues.


This issue was found internally by Intel employees. Intel would like to thank Yaakov Cohen, Yocheved Butterman and Yossef Kuszer.

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 09/08/2020 Initial Release
1.1 10/29/2020 Updated affected products
1.2 01/22/2021 Added ICSA-20-353-01 reference

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