Rapid7

module

LINQPad Deserialization

Disclosed
Dec 3, 2024
Created
Nov 11, 2025

Description

This module exploits a bug in LIQPad up to version 5.48.00. The bug is only exploitable in paid version of software. The core of a bug is cache file containing deserialized data, which attacker can overwrite with malicious payload. The data gets deserialized every time the app restarts.

Authors

msutovsky-r7 [email protected]
James Williams

Platform

Windows

Architectures

cmd

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


msf > use exploit/windows/persistence/linqpad_deserialization
msf exploit(linqpad_deserialization) > show targets
...targets...
msf exploit(linqpad_deserialization) > set TARGET < target-id >
msf exploit(linqpad_deserialization) > show options
...show and set options...
msf exploit(linqpad_deserialization) > exploit

Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.