CVE-2017-11914

HIGH

ChakraCore and Microsoft Edge - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-11914. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a type confusion vulnerability in ChakraCore's JavascriptGeneratorFunction. The PoC exposes an internal 'scriptFunction' object via a getter for the 'length' property, allowing arbitrary calls that lead to type confusion.

Description

ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as 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-2017-11886, CVE-2017-11889, CVE-2017-11890, CVE-2017-11893, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, CVE-2017-11905, CVE-2017-11905, CVE-2017-11907, CVE-2017-11908, CVE-2017-11909, CVE-2017-11910, CVE-2017-11911, CVE-2017-11912, CVE-2017-11913, CVE-2017-11916, CVE-2017-11918, and CVE-2017-11930.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/43713

This exploit demonstrates a type confusion vulnerability in ChakraCore's JavascriptGeneratorFunction. The PoC exposes an internal 'scriptFunction' object via a getter for the 'length' property, allowing arbitrary calls that lead to type confusion.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft ChakraCore (Edge/IE JavaScript engine)
No auth needed
Prerequisites: Target must execute the JavaScript code in a vulnerable ChakraCore environment
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039990
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43713/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102088

Scores

CVSS v3 7.5
EPSS 0.6265
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-119
Status published
Products (4)
microsoft/chakracore < 1.7.5
microsoft/edge
Microsoft Corporation/ChakraCore, Microsoft Edge Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016.
nuget/Microsoft.ChakraCore 0 - 1.7.5NuGet
Published Dec 12, 2017
Tracked Since Feb 18, 2026