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Intel® Platform Trust Technology (PTT) Update Advisory

Intel ID: INTEL-SA-00142
Advisory Category: Firmware
Impact of vulnerability: Information Disclosure
Severity rating: MEDIUM
Original release: 09/11/2018
Last revised: 09/11/2018


A potential vulnerability in the Intel® PTT module in Intel® CSME firmware and Intel® TXE firmware may allow information disclosure. Intel is releasing Intel® CSME firmware and Intel® TXE firmware updates to mitigate this potential vulnerability.

Vulnerability Details

CVEID: CVE-2018-3659

Description: A vulnerability in Intel® PTT module in Intel® CSME firmware before version 12.0.5 and Intel® TXE firmware before version 4.0 may allow an unauthenticated user to potentially disclose information via physical access.

CVSS Base Score: 6.8 Medium


Affected Products:

Intel® CSME:

Updated Intel® CSME Firmware version

Replaces Intel® CSME Firmware version


12.0 through 12.0.5


Intel® Trusted Execution Engine (TXE)

Updated TXE Firmware version

Replaces TXE Firmware version


3.0 through 3.1.50




Intel recommends that users of Intel® CSME and Intel® Trusted Execution Engine (TXE) update to the latest version provided by the system manufacturer that addresses these issues.


This issue was found internally by Intel.

Revision History

Revision Date Description
1.0 09/11/2018 Initial Release

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