EPSON Web Installer Owner’s Manual

EPSON Web Installer

Specifications

• Supported Operating Systems: macOS Sequoia(Mac OS 15.x) / macOS Sonoma(Mac OS 14.x) / macOS Ventura(Mac OS 13.x) / macOS Monterey(Mac OS 12.x) / macOS Big Sur(Mac OS 11.x) / macOS Catalina(Mac OS 10.15) / macOS Mojave(Mac OS 10.14) / macOS High Sierra(Mac OS 10.13) / macOS Sierra(Mac OS 10.12) / OS X El Capitan(Mac OS 10.11)

Product Usage Instructions

Installation Steps

1. Ensure your Mac operating system is one of the supported versions listed above.
2. Download the latest version of Epson Web Installer from the official website.
3. Launch the Drivers and Utilities Combo Package Installer or epson.sn to start the installation process.
4. Follow the on-screen prompts to complete the installation.
5. Ensure that the patched version of Epson Web Installer is automatically downloaded and executed during the installation process.

Usage Guidelines

• After installation, regularly check for updates to ensure your Epson products are running the latest software versions.
• If you encounter any issues or suspect any vulnerabilities, contact Epson customer support immediately.

Vulnerability in Driver/Software Installation via Web Installer for Mac 

July 7, 2025 Seiko Epson Corporation Epson Sales Corporation

Thank you for using Epson products.
A vulnerability has been confirmed in the Mac version of Epson Web Installer via Setup Navi (when installing using the Driver & Utility Combo Package Installer) on June 20th, 2025. This is a tool that allows you to install the latest drivers and related software on Mac computers all at once for some Epson products.

DESCRIPTION
When the Mac version of Epson Web Installer is launched (via Drivers and Utilities Combo Package Installer or epson.sn), a privileged helper tool is registered and started. While this helper tool is running, it is possible for an application with arbitrary user privileges to connect to the tool and execute privileged operations (such as running commands, scripts, or installing packages) without administrator authentication.

IMPACT

• There have not been any reports of attacks exploiting this vulnerability.
• This vulnerability affects the Drivers and Utilities Combo Package Installer and installation operations via Epson.sn (Setup Navi) across several Epson products in the Inkjet, Laser, Large Format, Scanner, Commercial Photo and Print Systems.:

SUPPORTED OPERATING SYSTEMS
macOS Sequoia(Mac OS 15.x) / macOS Sonoma(Mac OS 14.x) / macOS Ventura(Mac OS 13.x) / macOS Monterey(Mac OS 12.x) / macOS Big Sur(Mac OS 11.x) / macOS Catalina(Mac OS 10.15) / macOS Mojave(Mac OS 10.14) / macOS High Sierra(Mac OS 10.13) / macOS Sierra(Mac OS 10.12) / OS X El Capitan(Mac OS 10.11)

SOLUTION
A patched version of Epson Web Installer was released and is readily available on June 23, 2025, at noon. This version is automatically downloaded and executed when the Drivers and Utilities Combo Package Installer is launched (including via epson.sn (Setup Navi)), so there is currently no impact on customers.

FAQs