Software Security is the field mainly concerned with protecting software applications and systems against different threats or risks or the process of defending software applications or systems against various threats, risks, or attacks. It includes the various initiatives, methods, and safeguards to protect the software and data it processes from unauthorized access, alteration, or denial.

An MSI (Microsoft Installer) installer is a file format and technology that Microsoft developed for installing, maintaining, and removing software on the Windows operating system. MSI installers are the usual tools for software deployment in companies and for software distribution to users. MSI installers’ main characteristics are the structure’s packaging, the possibility of installation customization, rollback, silent installation, patch management, and digital signing.

Remote Code Execution (RCE) is an attack technique where an attacker can execute remote code on a target system or device while smiling from ear to ear without physical access. In this attack, a hacker exploits system weaknesses such as software, operating systems, or network protocols to gain unauthorized access and execute malware onto the target system.

A patch is a set of modifications that mean to update, repair or improve the computer program or its corresponding data. Patches are a key component of software support and lifecycle.