A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
The severity level is categorized as high, with a CVSS score of 7.5. This indicates a significant risk to organizations, as the vulnerability can be exploited remotely, allowing unauthorized access to critical systems.
Risk to organizations includes potential data breaches and unauthorized system control. Attackers may leverage this vulnerability to execute arbitrary code, making it essential for organizations to address this issue promptly.
Organizations should prioritize patching immediately. The vulnerability is known to be actively exploited, and there is a public proof of concept available. This heightens the urgency for defenders to implement mitigations.
Vulnerability Details
The ChakraCore scripting engine contains a type confusion vulnerability that can allow for remote code execution. The vulnerability has a CVSS score of 7.5, indicating high severity, and affects all versions prior to vendor patch.
The CWE classification for this vulnerability is CWE-843. The vulnerability was published on July 11, 2018, and the last modification was made on October 28, 2025.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of objects in memory by the ChakraCore scripting engine, leading to potential memory corruption. The attack vector is network-based, requiring high complexity to exploit, as user interaction is necessary.
This vulnerability does not require any privileges to exploit, but it does necessitate user interaction, heightening its risk factor. The impacts on confidentiality, integrity, and availability are all classified as high.
Risk & Impact Analysis
Real-world deployment risk is significant due to the potential for remote code execution. Organizations utilizing ChakraCore should assess their exposure and implement immediate patches.
The blast radius could be extensive, affecting any system utilizing the affected ChakraCore versions. Given the high CVSS score and the presence of known exploits, organizations should treat this vulnerability with utmost urgency.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
All versions of ChakraCore prior to 1.10.1 are affected by this vulnerability. Organizations should verify their installed versions and apply necessary patches.
Mitigation & Remediation
Organizations should immediately apply updates as per vendor instructions to mitigate this vulnerability. For those unable to apply patches, implementing network controls and restricting access to affected systems may help reduce risk.
Further, organizations may consider engaging in security testing to validate the effectiveness of their mitigations. Continuous monitoring and threat detection capabilities should be enhanced to identify any related suspicious activities.
Detection Guidance
Monitoring logs for unusual patterns of behavior, especially around the ChakraCore execution environment, can help detect potential exploitation attempts.
Organizations should also be on the lookout for any unauthorized changes to system configurations or anomalous network activity that may indicate an exploitation attempt.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the importance of secure coding practices in software development to prevent similar vulnerabilities in the future.
This vulnerability represents a pattern of type confusion issues that can lead to severe consequences, underscoring the need for rigorous testing and validation processes in software.
Security teams should take away the strategic defensive insight that proactive vulnerability management and timely patching are essential to mitigate risks associated with software vulnerabilities.
Penetration testing can serve as an effective method to identify similar vulnerabilities in other applications and systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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