Insecure DLL loading in EATON UPS Companion - CVE-2025-59887
Published: January 16, 2026
Vulnerability identifier: #VU121617
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-59887
CWE-ID: CWE-427
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to improper authentication of library files. A remote attacker can place a specially crafted .dll file and execute arbitrary code with elevated privileges on the target system.
Affected software
EATON UPS Companion
How to mitigate CVE-2025-59887
Install updates from vendor's website.
EATON UPS Companion - update to 3.0