EIP-2026-118814

PRE-CVE

Microsoft Internet Explorer 5 / Firefox 0.8 / OmniWeb 4.x - URI Protocol Handler Arbitrary File Creation/Modification

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118814. PoCs published by Karol Wiesek.

AI-analyzed exploit summary This is a vulnerability writeup describing a URI handling flaw in multiple vendors' products, where a '-' character preceding the hostname allows passing arbitrary options to protocol handlers like telnet, rlogin, ssh, and mailto. Successful exploitation could lead to arbitrary file creation/modification or denial of service in the browser context.

Description

Microsoft Internet Explorer 5 / Firefox 0.8 / OmniWeb 4.x - URI Protocol Handler Arbitrary File Creation/Modification

Exploits (1)

exploitdb WRITEUP VERIFIED
by Karol Wiesek · textremotewindows
https://www.exploit-db.com/exploits/24116

This is a vulnerability writeup describing a URI handling flaw in multiple vendors' products, where a '-' character preceding the hostname allows passing arbitrary options to protocol handlers like telnet, rlogin, ssh, and mailto. Successful exploitation could lead to arbitrary file creation/modification or denial of service in the browser context.

Classification
Writeup 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Multiple vendors' products (unspecified versions)
No auth needed
Prerequisites: User interaction required to trigger malicious URI
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026