EIP-2026-118926

PRE-CVE

Mozilla FireFox 1.0.1 - Remote GIF Heap Overflow

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118926. PoCs published by darkeagle.

AI-analyzed exploit summary This exploit targets a heap overflow vulnerability in Mozilla Firefox <= 1.0.1 by crafting a malicious GIF file. The payload executes arbitrary code (calc.exe) via shellcode embedded in the GIF data.

Description

Mozilla FireFox 1.0.1 - Remote GIF Heap Overflow

Exploits (1)

exploitdb WORKING POC VERIFIED

by darkeagle · cremotewindows

https://www.exploit-db.com/exploits/1089

View Code ZIP pw:eip

This exploit targets a heap overflow vulnerability in Mozilla Firefox <= 1.0.1 by crafting a malicious GIF file. The payload executes arbitrary code (calc.exe) via shellcode embedded in the GIF data.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Mozilla Firefox <= 1.0.1

No auth needed

Prerequisites: Victim must open the malicious GIF file in a vulnerable Firefox version

MITRE ATT&CK

T1203 - Exploitation for Client Execution T1059 - Command and Scripting Interpreter

devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026