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Eaton Vulnerabilities Allow Attackers to Execute Arbitrary Code on Host Systems

## Cybersecurity Advisory: Eaton UPS Companion Software Vulnerabilities

GBy Grace BennettJan 05, 20261 min read

Cybersecurity Advisory: Eaton UPS Companion Software Vulnerabilities

Eaton has released a critical security advisory regarding multiple high-severity vulnerabilities in its UPS Companion software. These vulnerabilities could potentially allow attackers to execute arbitrary code on affected systems.

The advisory, identified as ETN-VA-2025-1026, highlights two vulnerabilities with CVSS scores ranging from high to medium severity.

CVE ID CVSS v3.1 Score Severity Vulnerability Type

CVE-2025-59887 8.6 High Insecure Library Loading

CVE-2025-59888 6.7 Medium Improper Quotation

Eaton has released a critical security advisory regarding multiple high-severity vulnerabilities in its UPS Companion software.
Grace Bennett · Thehackingpost

The first vulnerability, CVE-2025-59887, with a CVSS score of 8.6, involves insecure library loading in the Eaton IPP software installer. This flaw can enable an attacker with access to the software package to execute arbitrary code, potentially compromising confidentiality, integrity, and availability.

The second vulnerability, CVE-2025-59888, scores 6.7 on the CVSS scale and affects the Eaton UPS Companion software due to improper quoting in search paths. Attackers with file system access could exploit this to execute arbitrary code, although high-level privileges are required.

All versions of Eaton UPS Companion software prior to version 3.0 are affected. Eaton strongly recommends upgrading to version 3.0, which includes patches for both vulnerabilities. It is advised to download software only from Eaton's official distribution channels to prevent supply chain attacks.

For those unable to apply patches immediately, Eaton suggests several mitigation measures:

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Restricting access to host systems to authorized personnel only Implementing secure firewalls for control system networks Ensuring software is sourced from official channels Deploying control systems behind barrier devices and isolating them from business networks

Eaton's cybersecurity team recommends adopting security best practices, including changing default passwords, enabling audit logs, disabling unused services, and conducting regular security assessments. Organizations needing further support can contact Eaton’s cybersecurity services team or visit the company's dedicated cybersecurity website for guidance.

Based on reporting by GBHackers.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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