CVE-2017-0202

HIGH

Internet Explorer - Remote Code Execution via Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-0202. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a memory corruption vulnerability in Internet Explorer 11, specifically a type confusion issue leading to an out-of-bounds read in CStyleSheetArray::BuildListOfMatchedRules. The vulnerability can potentially be escalated to arbitrary code execution due to a subsequent write at an attacker-controlled address.

Description

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user, a.k.a. "Internet Explorer Memory Corruption Vulnerability."

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldoswindows
https://www.exploit-db.com/exploits/41941

This PoC exploits a memory corruption vulnerability in Internet Explorer 11, specifically a type confusion issue leading to an out-of-bounds read in CStyleSheetArray::BuildListOfMatchedRules. The vulnerability can potentially be escalated to arbitrary code execution due to a subsequent write at an attacker-controlled address.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: Internet Explorer 11.576.14393.0 (Update Version 11.0.38)
No auth needed
Prerequisites: Victim must visit a malicious webpage using Internet Explorer 11
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/41941/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038238
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97441

Scores

CVSS v3 7.5
EPSS 0.6187
EPSS Percentile 98.4%
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 (2)
microsoft/internet_explorer 11
Microsoft Corporation/Internet Explorer Internet Explorer 11
Published Apr 12, 2017
Tracked Since Feb 18, 2026