EIP-2026-103468

PRE-CVE

Firefox 67.0.4 - Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103468. PoCs published by Tejas Ajay Naik.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in Firefox 67.0.4 by passing an excessively large string to DOMParser.parseFromString, causing the tab to crash. The PoC uses a loop to generate a malformed XML string and triggers the crash via an onmousemove event.

Description

Firefox 67.0.4 - Denial of Service

Exploits (1)

exploitdb WORKING POC
by Tejas Ajay Naik · htmldosmultiple
https://www.exploit-db.com/exploits/47079

This exploit demonstrates a Denial of Service (DoS) vulnerability in Firefox 67.0.4 by passing an excessively large string to DOMParser.parseFromString, causing the tab to crash. The PoC uses a loop to generate a malformed XML string and triggers the crash via an onmousemove event.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Firefox 67.0.4
No auth needed
Prerequisites: Firefox 67.0.4 installed · User interaction to trigger the onmousemove event
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026