CVE-2017-11906

MEDIUM

Internet Explorer - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-11906. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit triggers an out-of-bounds read in jscript.dll via a crafted regular expression with excessive parentheses, leading to a crash in Internet Explorer. The PoC demonstrates the vulnerability by accessing RegExp.lastParen after the crash.

Description

Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to obtain information to further compromise the user's system, due to how Internet Explorer handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-11887 and CVE-2017-11919.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldoswindows
https://www.exploit-db.com/exploits/43372

This exploit triggers an out-of-bounds read in jscript.dll via a crafted regular expression with excessive parentheses, leading to a crash in Internet Explorer. The PoC demonstrates the vulnerability by accessing RegExp.lastParen after the crash.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Internet Explorer (jscript.dll)
No auth needed
Prerequisites: Internet Explorer with JScript enabled · Page heap may be required to observe the crash
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/102078
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039993
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43372/

Scores

CVSS v3 5.3
EPSS 0.5888
EPSS Percentile 98.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (4)
microsoft/internet_explorer 11
microsoft/internet_explorer 9
microsoft/internet_explorer 10
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