EIP-2026-102685

PRE-CVE

Mozilla Firefox 1.0.x/1.5 - HTML Parsing Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102685. PoCs published by Yuan Qi.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service vulnerability in Mozilla Firefox by using malformed HTML content. The specific HTML structure causes the browser to fail or hang, likely due to improper parsing or memory handling.

Description

Mozilla Firefox 1.0.x/1.5 - HTML Parsing Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Yuan Qi · textdoslinux
https://www.exploit-db.com/exploits/27253

This exploit demonstrates a denial-of-service vulnerability in Mozilla Firefox by using malformed HTML content. The specific HTML structure causes the browser to fail or hang, likely due to improper parsing or memory handling.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Mozilla Firefox versions prior to 1.5.0.1
No auth needed
Prerequisites: A vulnerable version of Mozilla Firefox · Ability to deliver malformed HTML content to the target
mistral-large-3 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026