EIP-2026-103564

PRE-CVE

Mozilla Firefox 2.0.0.12 - IFrame Recursion Remote Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103564. PoCs published by Carl Hardwick.

AI-analyzed exploit summary This exploit leverages a denial-of-service vulnerability in Mozilla Firefox by using malformed IFrames with null-byte-prefixed URLs to crash the browser. The PoC demonstrates the issue by targeting specific internal protocols (res://, about:config, file:///).

Description

Mozilla Firefox 2.0.0.12 - IFrame Recursion Remote Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Carl Hardwick · textdosmultiple
https://www.exploit-db.com/exploits/31203

This exploit leverages a denial-of-service vulnerability in Mozilla Firefox by using malformed IFrames with null-byte-prefixed URLs to crash the browser. The PoC demonstrates the issue by targeting specific internal protocols (res://, about:config, file:///).

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Mozilla Firefox 2.0.0.12 (and potentially other versions)
No auth needed
Prerequisites: Victim must visit a webpage containing the malicious IFrames
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026