Remote Code Execution (RCE) Affecting microsoft.chakracore package, versions [,1.11.1)



    Attack Complexity High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High
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7.5 high

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  • published 24 Mar 2019
  • disclosed 11 Sep 2018
  • credit Michael Holman, Microsoft Chakra Core Team

How to fix?

Upgrade Microsoft.ChakraCore to version 1.11.1 or higher.


Microsoft.ChakraCore is a core part of the Chakra Javascript engine that powers Microsoft Edge

Affected versions of this package are vulnerable to Remote Code Execution (RCE) due to the way the scripting engine handles objects in memory in Microsoft Edge. This can result in memory corruption and arbitrary code execution in the context of the current user. An attacker could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker could take control of an affected system and will be able to install programs; view, change, or delete data; or create new accounts with full user rights.