CVE-2018-8266: ChakraCore RCE Vulnerability in Microsoft.ChakraCore
Summary
CVE-2018-8266: ChakraCore RCE Vulnerability. Affects Microsoft.ChakraCore versions < 1.10.2. Fixed in 1.10.2. How to fix ↓
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Background
Microsoft.ChakraCore is a scripting engine used by Microsoft Edge for executing JavaScript code. It is an open-source project that provides a high-performance JavaScript runtime. ChakraCore is vulnerable to a remote code execution (RCE) vulnerability, known as CVE-2018-8266. This vulnerability arises from the way ChakraCore handles objects in memory. It affects both Microsoft Edge and ChakraCore.
Vulnerability Detail
The ChakraCore RCE vulnerability allows an attacker to execute arbitrary code remotely. By exploiting this vulnerability, an attacker can gain control over the affected system, potentially leading to unauthorized access, data theft, or further compromise of the system. The vulnerability has a CVSS score of 7.5, indicating a high severity level. It is important to note that this CVE ID is unique from other related vulnerabilities (CVE-2018-8380, CVE-2018-8381, CVE-2018-8384).
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
1.10.2
This is the first release that contains the fix.
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Workaround
There is no specific workaround mentioned for this vulnerability. It is advised to apply the recommended fix by updating the Microsoft.ChakraCore package to the latest version.
Conclusion
The ChakraCore RCE vulnerability in Microsoft.ChakraCore poses a significant risk to systems using Microsoft Edge or ChakraCore. It is crucial to update the Microsoft.ChakraCore package to version 1.10.2 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The vulnerability allows an attacker to execute arbitrary code remotely, potentially leading to unauthorized access, data theft, or further compromise of the system.
The vulnerability affects the Microsoft.ChakraCore package.
Yes, the vulnerability has a CVSS score of 7.5, indicating a high severity level.
Specific known exploits for this vulnerability are not mentioned in the provided information.
You can use Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
References
Related vulnerabilities
Recent vulnerabilities recorded for Microsoft.ChakraCore.
