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7.8
EPSON Printer Driver Installer Allows Malicious Code Execution
CVE-2025-4960
Summary
A security flaw in the EPSON printer driver installer on macOS allows a malicious user to execute commands and install system components without needing administrator permissions. This is a serious issue because it can be exploited by an attacker to gain elevated access to your system. To protect your device, update to the latest version of the EPSON printer driver installer, and ensure you have the most recent security patches installed.
Original title
The com.epson.InstallNavi.helper tool, deployed with the EPSON printer driver installer, contains a local privilege escalation vulnerability due to multiple flaws in its implementation. It fails to...
Original description
The com.epson.InstallNavi.helper tool, deployed with the EPSON printer driver installer, contains a local privilege escalation vulnerability due to multiple flaws in its implementation. It fails to properly authenticate clients over the XPC protocol and does not correctly enforce macOS’s authorization model, exposing privileged functionality to untrusted users. Although it invokes the AuthorizationCopyRights API, it does so using overly permissive custom rights that it registers in the system’s authorization database (/var/db/auth.db).
These rights can be requested and granted by the authorization daemon to any local user, regardless of privilege level. As a result, an attacker can exploit the vulnerable service to perform privileged operations such as executing arbitrary commands or installing system components without requiring administrative credentials.
These rights can be requested and granted by the authorization daemon to any local user, regardless of privilege level. As a result, an attacker can exploit the vulnerable service to perform privileged operations such as executing arbitrary commands or installing system components without requiring administrative credentials.
nvd CVSS3.1
7.8
Vulnerability type
CWE-863
Incorrect Authorization
Published: 19 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026