EIP-2026-103993

PRE-CVE

Mozilla Firefox 1.04 - 'compareTo()' Remote Code Execution

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103993. PoCs published by Aviv Raff.

AI-analyzed exploit summary This exploit targets a vulnerability in Mozilla Firefox <= v1.04 by leveraging a heap spraying technique to achieve remote code execution via the InstallVersion->compareTo method. The payload is designed to manipulate memory and execute arbitrary code.

Description

Mozilla Firefox 1.04 - 'compareTo()' Remote Code Execution

Exploits (1)

exploitdb WORKING POC VERIFIED

by Aviv Raff · htmlremotemultiple

https://www.exploit-db.com/exploits/1369

View Code ZIP pw:eip

This exploit targets a vulnerability in Mozilla Firefox <= v1.04 by leveraging a heap spraying technique to achieve remote code execution via the InstallVersion->compareTo method. The payload is designed to manipulate memory and execute arbitrary code.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Mozilla Firefox <= v1.04

No auth needed

Prerequisites: Victim must visit a malicious webpage

MITRE ATT&CK

T1189 - Drive-by Compromise T1059 - Command and Scripting Interpreter

devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026