CVE-2017-11890

HIGH

Microsoft Windows - Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-11890. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a heap overflow in jscript.dll when compiling a regex, leading to a potential remote code execution vulnerability. The PoC triggers an integer overflow in RegExpComp::Compile, causing a buffer overflow during memory allocation.

Description

Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user, due to how Internet Explorer handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11886, CVE-2017-11889, CVE-2017-11893, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, 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-2017-11914, CVE-2017-11916, CVE-2017-11918, and CVE-2017-11930.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldoswindows
https://www.exploit-db.com/exploits/43369

This exploit demonstrates a heap overflow in jscript.dll when compiling a regex, leading to a potential remote code execution vulnerability. The PoC triggers an integer overflow in RegExpComp::Compile, causing a buffer overflow during memory allocation.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Internet Explorer (jscript.dll), Windows 7/10 (64-bit)
No auth needed
Prerequisites: Victim must visit a malicious webpage or receive a malicious WPAD file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102082
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039991
Exploit, Issue Tracking, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43369/

Scores

CVSS v3 7.5
EPSS 0.5941
EPSS Percentile 98.3%
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/internet_explorer 11
microsoft/internet_explorer 10
microsoft/internet_explorer 9
Microsoft Corporation/Internet Explorer Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Ser
Published Dec 12, 2017
Tracked Since Feb 18, 2026