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Entry type: Download Entry ID: 109752556, Entry date: 12/13/2017

Update for RF350M/RF650M against "WiFi KRACK attack"

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The present update for the devices SIMATIC RF350M and SIMATIC RF650M fixes the security vulnerabilities which became known under the name KRACK Attacks.

Update for the WLAN drivers of the SIMATIC RF350M and RF650M in the form of a PAK file. The present update fixes the problem for the devices based on Merlin V 3.7.0 (RF350M) and Morphic V 3.7.0 (RF650M) from Nordic ID.

To perform the update, download the file "100_sd40_22_3_5_16_merlinmorphic_370_1.pak" and copy it to the flash directory. Then carry out a restart of the device (Cold Boot) to complete the update. The version can be checked In the 'About' dialog of the SCU driver.


Third-party software – License conditions and copyright information

You can find the copyright information for third-party software contained in this product, particularly open source software, as well as applicable license conditions of such third-party software in the ReadMe_OSS file.

Special note for resellers

The information and the license conditions in the Readme_OSS file must be passed on to the purchasing party to avoid license infringements by the reseller or purchasing party. Registrierung notwendig  RF350M_update_patch_WPA2_KRACK_22_3_5_16_171207_ReadMe.html (44,7 KB)


You can download the file here:

 Download unterliegt Exportcontrolle  100_sd40_22_3_5_16_merlinmorphic_370_1.zip (3,1 MB) 


Additional information: 
SSA-418456: KRACK Attacks in Vulnerabilities in SIMATIC RF350M and SIMATIC RF360M


Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
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