7.5

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2018-8381

CVE-2018-8381: ChakraCore RCE Vulnerability

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8384.

(GitHub Advisory)

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CVE-2018-8381

CVE-2018-8381:

7.5

CVSS Score

3.0

-

CVSS Score

Basic Information

Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
Microsoft.ChakraCore	nuget	< 1.10.2	1.10.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The commit 1b77d55 specifically addresses CVE-2018-8381 by modifying MarshalDynamicObject in CrossSite.cpp. The added proxy check prevents prototype chain traversal re-entrancy, which the vulnerability description links to type confusion and memory corruption. The CWE-787 (OOB write) aligns with memory corruption scenarios arising from this flaw.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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7.5

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2018-8381: ChakraCore RCE Vulnerability

CVE-2018-8381:

7.5

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Technical Details

CVE-2018-8381: ChakraCore RCE Vulnerability

Basic Information

Basic Information

7.5

7.5

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI