CVE-2017-11839

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-2017-11839. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages a type confusion vulnerability in Chakra JIT compilation, where constants are incorrectly marked as objects due to flawed type inference during inlining. The PoC triggers a type confusion by forcing a float to be treated as an object, leading to potential RCE.

Description

Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to take control of an affected system, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11840, CVE-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, CVE-2017-11859, CVE-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11870, CVE-2017-11871, and CVE-2017-11873.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdoswindows
https://www.exploit-db.com/exploits/43180

This exploit leverages a type confusion vulnerability in Chakra JIT compilation, where constants are incorrectly marked as objects due to flawed type inference during inlining. The PoC triggers a type confusion by forcing a float to be treated as an object, leading to potential RCE.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Chakra JavaScript Engine (Edge, IE)
No auth needed
Prerequisites: Target must execute the JavaScript code in a vulnerable Chakra engine
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/1039780
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/101735
Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43180/

Scores

CVSS v3 7.5
EPSS 0.8040
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-119
Status published
Products (1)
microsoft/edge
Published Nov 15, 2017
Tracked Since Feb 18, 2026