CVE-2017-7884: Apcupsd Apc Ups Daemon

High severity, CVSS 8.4. EPSS: 0.4% chance of exploitation in the next 30 days.

In Adam Kropelin adk0212 APC UPS Daemon through 3.14.14, the default installation of APCUPSD allows a local authenticated, but unprivileged, user to run arbitrary code with elevated privileges by replacing the service executable apcupsd.exe with a malicious executable that will run with SYSTEM privileges at startup. This occurs because of "RW NT AUTHORITY\Authenticated Users" permissions for %SYSTEMDRIVE%\apcupsd\bin\apcupsd.exe.

Affected products

• Apcupsd Apc Ups Daemon: up to and including 3.14.14

Published 2017-06-16. Last modified 2026-06-17.