CVE-2016-7202

HIGH

Microsoft Edge - Remote Code Execution via Scripting Engine Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2016-7202. PoCs published by Security-Assessment.com, Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a memory corruption vulnerability in Microsoft Edge's Chakra JavaScript engine (CVE-2016-7202). The PoC uses crafted JavaScript to trigger a use-after-free condition, potentially leading to remote code execution.

Description

The scripting engines in Microsoft Internet Explorer 9 through 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," as demonstrated by the Chakra JavaScript engine, a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Security-Assessment.com · htmldoswindows
https://www.exploit-db.com/exploits/40793

This exploit demonstrates a memory corruption vulnerability in Microsoft Edge's Chakra JavaScript engine (CVE-2016-7202). The PoC uses crafted JavaScript to trigger a use-after-free condition, potentially leading to remote code execution.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: Microsoft Edge (Chakra JavaScript engine) on Windows 10 and Windows Server 2016
No auth needed
Prerequisites: Victim must visit a malicious webpage · Vulnerable version of Microsoft Edge
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Google Security Research · htmldoswindows
https://www.exploit-db.com/exploits/40786

This exploit leverages a type confusion vulnerability in Chakra (CVE-2016-7202) by manipulating array lengths during prototype operations, leading to a heap overflow. The PoC demonstrates memory corruption via JavaScript array manipulation in Microsoft Edge.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: Microsoft Edge (Chakra JavaScript Engine)
No auth needed
Prerequisites: Victim must visit a malicious webpage using Microsoft Edge
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/40793/
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/40786/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/94042
Third Party Advisory, VDB Entry x_refsource_misc
http://www.zerodayinitiative.com/advisories/ZDI-16-593
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037245

Scores

CVSS v3 7.5
EPSS 0.7687
EPSS Percentile 99.0%
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-119
Status published
Products (2)
microsoft/edge
nuget/Microsoft.ChakraCore 0 - 1.2.2NuGet
Published Nov 10, 2016
Tracked Since Feb 18, 2026