CVE-2026-6421
HIGHMobatek MobaXterm Home Edition msimg32.dll uncontrolled search path
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-6421. PoCs published by 1neptune.
AI-analyzed exploit summary This repository contains a Rust-based fileless shellcode loader and DLL hijacking exploit for MobaXterm Home Edition <= 26.1 (CVE-2026-6421). The exploit leverages DLL hijacking to execute shellcode downloaded from a remote C2 server, with anti-sandbox detection and stealth techniques to avoid AV detection.
Description
A vulnerability has been found in Mobatek MobaXterm Home Edition up to 26.1. This affects an unknown part in the library msimg32.dll. The manipulation leads to uncontrolled search path. An attack has to be approached locally. The attack is considered to have high complexity. It is indicated that the exploitability is difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 26.2 is able to mitigate this issue. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Exploits (1)
This repository contains a Rust-based fileless shellcode loader and DLL hijacking exploit for MobaXterm Home Edition <= 26.1 (CVE-2026-6421). The exploit leverages DLL hijacking to execute shellcode downloaded from a remote C2 server, with anti-sandbox detection and stealth techniques to avoid AV detection.
References (6)
Scores
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H