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About security vulnerability of Infineon's TPM

Release Date: October 26, 2017 
Last Updated: November 28, 2017 

Information about security vulnerability of Infineon's TPM (Trusted Platform Module) was announced.

And Microsoft released updates for workaround, Infineon released new firmware of TPM chip.

Details are explained in the sites below.

 Infineon 

 Microsoft 

Note : Please be advised that the information will be changed or added without notice.

Target models and TPM information

Affected products are the models below which have TPM with specified "Manufacturer Version".

Target models

In case OS is Windows 7, the PC is affected only if
BitLocker is enabled,
or Infineon TPM professional Package is installed,
or other software which uses RSA key-pair generated by TPM chip is used.

  • TOUGHBOOK series:
    CF-20, CF-31, CF-33, CF-53, CF-54, CF-AX3, CF-C2, CF-D1, CF-LX3, CF-MX4,
    CF-SX4, CF-SZ6, CF-XZ6 series
  • TOUGHPAD series:
    FZ-G1, FZ-M1, FZ-Q1, FZ-Q2, FZ-R1, FZ-Y1 series

TPM information

* TPM Manufacturer information can be checked by

  1. Press Windows key + "R" key.
  2. Input "tpm.msc", and press [OK].

If "Compatible TPM cannot be found" message is displayed, the PC is not affected.

TPM Manufacturer Information

Manufacturer Name Manufacturer Version Specification version
IFX 4.32.xxx 1.2
4.40.xxx
5.51.xxx 2.0
5.61.xxx

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TPM firmware update tool

Please check the information on the following TPM specification version.

Specification version OS Targeted release date
1.2 Windows 10
Windows 7

Download ▶

Released on November 14, 2017

Windows 8.1 Will be released
in the end of January 2018
2.0 Windows 10

Download ▶

Released on November 28, 2017

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