CVE-2018-0837

HIGH

ChakraCore - Remote Code Execution via Memory Corruption in Scripting Engine

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-0837. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a type confusion vulnerability in ChakraCore (CVE-2018-0837) by manipulating the 'this' object and array operations to achieve arbitrary memory corruption. The exploit leverages JIT optimization to bypass type checks and trigger the vulnerability.

Description

Microsoft Edge and ChakraCore in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0838, CVE-2018-0840, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/44081

This PoC exploits a type confusion vulnerability in ChakraCore (CVE-2018-0837) by manipulating the 'this' object and array operations to achieve arbitrary memory corruption. The exploit leverages JIT optimization to bypass type checks and trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft ChakraCore (Edge browser)
No auth needed
Prerequisites: Target must be running a vulnerable version of ChakraCore (e.g., Microsoft Edge prior to patch)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44081/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102876
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040372

Scores

CVSS v3 7.5
EPSS 0.7930
EPSS Percentile 99.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (3)
microsoft/chakracore
microsoft/edge
nuget/Microsoft.ChakraCore 0 - 1.8.1NuGet
Published Feb 15, 2018
Tracked Since Feb 18, 2026