Type Confusion in ChakraCore Scripting Engine (CVE‑2018‑8298) Enables Remote Code Execution
What It Is – ChakraCore’s JavaScript engine contains a type‑confusion flaw that can be triggered by crafted script input, allowing an attacker to execute arbitrary native code.
Exploitability – The vulnerability is publicly disclosed, has a CVSS 3.1 base score of 7.5 (High), and proof‑of‑concept exploits have been published, indicating active exploit potential.
Affected Products – ChakraCore (open‑source scripting engine used in Microsoft Edge, Node.js‑based runtimes, and other embedded applications).
Why It Matters for Trust & Control Assurance
- Demonstrates the need for a vulnerability‑management control that continuously inventories third‑party components and validates they are patched.
- Provides audit evidence that an organization monitors and remediates type‑confusion or remote‑code‑execution risks in its software supply chain.
- Aligns with the control objective of secure development and code integrity, a single VCF control that maps to many frameworks (e.g., NIST CSF, ISO 27001).
Recommended Actions
- Identify every application, service, or container that embeds ChakraCore.
- Verify that the latest security‑patched version (or a mitigated build) is deployed.
- Update your vulnerability‑management inventory and record remediation evidence for audit readiness.
- Incorporate automated scanning for type‑confusion patterns into your CI/CD pipeline.
Source: CISA KEV – CVE‑2018‑8298