CVE-2019-1052: ChakraCore RCE via Out-of-bounds write in Microsoft.ChakraCore

Microsoft.ChakraCore Updated 02 Oct 2025

Summary

24/05/2022

Disclosed on

CVE-2019-1052

CVE

Yes i

Fix available

High

Severity

7.5

CVSS Score

CVE-2019-1052: Chakra Scripting Engine RCE via Out-of-bounds write. Affects Microsoft.ChakraCore versions < 1.11.10. Fixed in 1.11.10. How to fix ↓

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Background

Microsoft.ChakraCore is a scripting engine used in Microsoft Edge. It provides the capability to execute JavaScript code within the browser. ChakraCore is vulnerable to a remote code execution (RCE) vulnerability that arises from the mishandling of objects in memory. This vulnerability has a CVSS score of 7.5, indicating a high severity level. It is important to address this vulnerability promptly to prevent potential exploitation.

Vulnerability Detail

The ChakraCore RCE vulnerability allows an attacker to execute arbitrary code remotely. The vulnerability stems from an out-of-bounds write issue in the Chakra scripting engine. 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. This vulnerability has been assigned the CVE identifier CVE-2019-1052.

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

1.11.10

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is crucial 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 utilizing this package. It is crucial to update the package to version 1.11.10 or later to mitigate the vulnerability. Failure to address this vulnerability may result in unauthorized access, data theft, or further compromise of the system. For further support on vulnerability remediation, please contact DevNack.com.

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