CVE-2019-0568

HIGH

ChakraCore - Remote Code Execution via Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-0568. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a use-after-free vulnerability in the Chakra JavaScript engine (CVE-2019-0568) by manipulating the disable-implicit-call flag and leaking a stack-allocated object via Error.prototype.toString. The exploit chain involves prototype pollution and property access to trigger the vulnerability.

Description

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-2019-0539, CVE-2019-0567.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/46205

This PoC exploits a use-after-free vulnerability in the Chakra JavaScript engine (CVE-2019-0568) by manipulating the disable-implicit-call flag and leaking a stack-allocated object via Error.prototype.toString. The exploit chain involves prototype pollution and property access to trigger the vulnerability.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Racy
Target: Microsoft ChakraCore (Edge/Internet Explorer JavaScript engine)
No auth needed
Prerequisites: Target must be using a vulnerable version of ChakraCore (e.g., Microsoft Edge or Internet Explorer)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/106420
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/46205/

Scores

CVSS v3 7.5
EPSS 0.7191
EPSS Percentile 99.4%
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 - 1.11.5NuGet
Published Jan 08, 2019
Tracked Since Feb 18, 2026