CVE-2017-11855

HIGH

Microsoft Windows - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-11855. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages an uninitialized variable vulnerability in jscript.dll (CVE-2017-11855) to trigger a memory corruption issue in Internet Explorer. The PoC manipulates the stack state to force an access violation, potentially leading to remote code execution.

Description

Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how Internet Explorer handles objects in memory, aka "Internet Explorer Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11856.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldoswindows
https://www.exploit-db.com/exploits/43371

This exploit leverages an uninitialized variable vulnerability in jscript.dll (CVE-2017-11855) to trigger a memory corruption issue in Internet Explorer. The PoC manipulates the stack state to force an access violation, potentially leading to remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: Internet Explorer 11 (64-bit) on Windows 10
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 (3)

Core 3
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43371/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/101751

Scores

CVSS v3 7.5
EPSS 0.4926
EPSS Percentile 97.9%
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 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows
Published Nov 15, 2017
Tracked Since Feb 18, 2026