CVE-2017-11807: ChakraCore RCE Vulnerability in Microsoft.ChakraCore
Summary
CVE-2017-11807: ChakraCore RCE Vulnerability. Affects Microsoft.ChakraCore versions < 1.7.3. Fixed in 1.7.3. How to fix ↓
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Background
Microsoft.ChakraCore is an open-source JavaScript engine developed by Microsoft. It is used in various Microsoft products, including Microsoft Edge browser. ChakraCore allows executing JavaScript code and provides a runtime environment for JavaScript applications. However, a vulnerability has been discovered in ChakraCore and Microsoft Edge in Microsoft Windows 10 1703. This vulnerability, known as CVE-2017-11807, allows an attacker to execute arbitrary code in the context of the current user. The vulnerability arises due to how the scripting engine handles objects in memory.
Vulnerability Detail
The scripting engine in ChakraCore and Microsoft Edge is susceptible to a memory corruption vulnerability. An attacker can exploit this vulnerability to execute arbitrary code by crafting a malicious JavaScript code and tricking a user into visiting a specially crafted website or opening a malicious document. Successful exploitation of this vulnerability can lead to remote code execution, enabling the attacker to take control of the affected system. The severity of this vulnerability is rated as HIGH with a CVSS score of 7.5.
How To Fix
Latest published version: 1.11.24 as of 22 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
1.7.3
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by updating the Microsoft.ChakraCore package to the latest version.
Conclusion
The ChakraCore RCE vulnerability (CVE-2017-11807) in Microsoft.ChakraCore and Microsoft Edge can allow an attacker to execute arbitrary code in the context of the current user. It is crucial to update the Microsoft.ChakraCore package to the latest version (1.7.3 or later) to mitigate this vulnerability. Failure to apply the necessary security patches can result in remote code execution and potential compromise of the affected system. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
ChakraCore is an open-source JavaScript engine developed by Microsoft. It provides a runtime environment for JavaScript applications and is used in various Microsoft products, including Microsoft Edge browser.
The vulnerability allows an attacker to execute arbitrary code in the context of the current user. This can lead to remote code execution and potential takeover of the affected system.
The vulnerability can be exploited by crafting a malicious JavaScript code and tricking a user into visiting a specially crafted website or opening a malicious document.
The severity of this vulnerability is rated as HIGH with a CVSS score of 7.5.
To fix this vulnerability, update the Microsoft.ChakraCore package to version 1.7.3 or later.
References
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