CVE-2018-8145

HIGH

ChakraCore < 1.8.3 - Memory Contents Exposure via Scripting Engine

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-8145. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a memory corruption vulnerability in the Chakra JavaScript engine by triggering an out-of-bounds write via a crafted loop and array manipulation. The code attempts to crash the browser by writing to an invalid array index.

Description

An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-0943, CVE-2018-8130, CVE-2018-8133, CVE-2018-8177.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/45011

This PoC exploits a memory corruption vulnerability in the Chakra JavaScript engine by triggering an out-of-bounds write via a crafted loop and array manipulation. The code attempts to crash the browser by writing to an invalid array index.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Racy
Target: Microsoft Edge (Chakra JavaScript engine)
No auth needed
Prerequisites: A vulnerable version of Microsoft Edge
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/45011/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103986
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040844

Scores

CVSS v3 7.5
EPSS 0.7210
EPSS Percentile 98.8%
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-200
Status published
Products (5)
microsoft/chakracore < 1.8.3
microsoft/edge
microsoft/internet_explorer 10
microsoft/internet_explorer 11
nuget/Microsoft.ChakraCore 0 - 1.8.4NuGet
Published May 09, 2018
Tracked Since Feb 18, 2026