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Entry type: Product note Entry ID: 109755177, Entry date: 10/08/2018

Notes on Microsoft Updates 2018-01 (Meltdown and Spectre) with SIMATIC WinAC RTX

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On January 3, 2018 and January 18, 2018, Microsoft released updates for its Windows operating systems to close the vulnerabilities which are grouped under the names Meltdown and Spectre.

SIMATIC WinAC RTX (F) 2010 incl. SP3 is now available which is compatible with current Microsoft updates. More detailed information about this version can be found in the following entry:


SIMATIC WinAC RTX (F) up to version 2010 incl. SP2 cannot be operated on PCs on which these updates have been installed. This especially applies to the following Microsoft updates:

Do not install these updateson PCs, on which SIMATIC WinAC RTX (F) 2010 incl. SP2 or older is operated, and do not install these versions of WinAC RTX on PCs, on which these KBs have already been installed.

In addition to the Windows updates listed above, additional updates can also be affected. Siemens therefore recommends testing the compatibility of the Microsoft patches before using them in an environment. So long as the patches are compatible, Siemens recommends implementing the patches to mitigate the risks of vulnerabilities.

This entry will be updated as soon as new information is available. Note: Updates which are declared as "Preview" are not installed or tested systematically.

You can find the latest information on the Microsoft Updates 2018-01 regarding Meltdown and Spectre and the operation with further SIMATIC software products in the product note 109754953 .


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