CVE-2018-0774

HIGH

Microsoft Edge - Remote Code Execution via Scripting Engine Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-0774. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a vulnerability in ChakraCore's JIT compiler (CVE-2018-0774) by triggering incorrect handling of function references in parameter scopes, leading to the emission of an invalid opcode. The exploit leverages a self-referencing function to cause a type confusion or memory corruption issue.

Description

Microsoft Edge in Windows 10 1709 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0758, CVE-2018-0762, CVE-2018-0768, CVE-2018-0769, CVE-2018-0770, CVE-2018-0772, CVE-2018-0773, CVE-2018-0775, CVE-2018-0776, CVE-2018-0777, CVE-2018-0778, and CVE-2018-0781.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/43715

This PoC exploits a vulnerability in ChakraCore's JIT compiler (CVE-2018-0774) by triggering incorrect handling of function references in parameter scopes, leading to the emission of an invalid opcode. The exploit leverages a self-referencing function to cause a type confusion or memory corruption issue.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft ChakraCore (Edge browser)
No auth needed
Prerequisites: Target must be using 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/43715/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102399
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040100

Scores

CVSS v3 7.5
EPSS 0.6787
EPSS Percentile 99.2%
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 (2)
microsoft/chakracore < 1.7.6
microsoft/edge
Published Jan 04, 2018
Tracked Since Feb 18, 2026