EIP-2026-115709

PRE-CVE

Microsoft Internet Explorer 6 - Script Action Handlers 'mshtml.dll' Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-115709. PoCs published by Michal Zalewski.

AI-analyzed exploit summary This exploit leverages a browser-based vulnerability by flooding an HTML element with excessive event handlers (onclick=bork) to trigger a denial-of-service (DoS) condition. The payload is designed to overwhelm the browser's JavaScript engine or DOM parser.

Description

Microsoft Internet Explorer 6 - Script Action Handlers 'mshtml.dll' Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Michal Zalewski · htmldoswindows
https://www.exploit-db.com/exploits/1598

This exploit leverages a browser-based vulnerability by flooding an HTML element with excessive event handlers (onclick=bork) to trigger a denial-of-service (DoS) condition. The payload is designed to overwhelm the browser's JavaScript engine or DOM parser.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Web browsers (likely older versions with limited DOM/event handler capacity)
No auth needed
Prerequisites: Victim must open the malicious HTML file in a vulnerable browser
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026