CVE-2016-7203: ChakraCore RCE Vulnerability in Microsoft.ChakraCore
Summary
CVE-2016-7203: ChakraCore RCE Vulnerability. Affects Microsoft.ChakraCore versions < 1.2.2. Fixed in 1.2.2. How to fix ↓
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Background
Microsoft.ChakraCore is a JavaScript scripting engine used in Microsoft Edge. It provides the functionality for executing JavaScript code in web browsers. ChakraCore is vulnerable to a remote code execution (RCE) vulnerability, which allows attackers to execute arbitrary code or cause a denial of service through memory corruption. This vulnerability is different from several other CVEs, including CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.
Vulnerability Detail
The ChakraCore JavaScript scripting engine in Microsoft Edge is susceptible to a memory corruption vulnerability. This vulnerability can be exploited by remote attackers through a crafted website. By exploiting this vulnerability, an attacker can execute arbitrary code or trigger a denial of service. The exact technical details of the vulnerability have not been disclosed.
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
1.2.2
This is the first release that contains the fix.
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Workaround
There is no specific workaround provided for this vulnerability. However, it is strongly advised to update the Microsoft.ChakraCore package to the latest version as mentioned in the 'how_to_fix' section.
Conclusion
The ChakraCore RCE vulnerability in Microsoft.ChakraCore can lead to remote code execution or denial of service. To mitigate this vulnerability, it is crucial to update the Microsoft.ChakraCore package to version 1.2.2 or later. Regularly applying security updates is essential to protect against potential exploits. For further assistance or support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Microsoft.ChakraCore →
FAQ
This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service. It can potentially lead to the compromise of user data, unauthorized access, or system crashes.
Yes, this vulnerability affects the ChakraCore JavaScript scripting engine used in Microsoft Edge. Other browsers or applications using different JavaScript engines are not affected.
The details of the vulnerability have not been publicly disclosed, but it is possible that attackers may have developed exploits targeting this vulnerability. It is crucial to update the affected package to mitigate the risk.
Yes, this vulnerability can be exploited remotely through a crafted website. Attackers can trick users into visiting a malicious website to trigger the vulnerability.
There is no specific information provided regarding active exploitation of this vulnerability. However, it is always recommended to apply security updates promptly to protect against potential attacks.
References
Related vulnerabilities
Recent vulnerabilities recorded for Microsoft.ChakraCore.
