CVE-2025-59888

Arbitrary code execution via unquoted search paths

Published Dec 26, 2025 · Updated Dec 26, 2025

Unquoted search paths in Eaton UPS Companion before 3.0 allow local users with file-system access to execute arbitrary code. The Windows software installer passes a path containing spaces without enclosing quotation marks, allowing path resolution to select an attacker-controlled executable from an earlier path component. Exploitation requires high local privileges and control of a usable file location; successful interception runs the substituted code in the vulnerable process's security context.

CVSS severity6.7
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unquoted search paths in Eaton UPS Companion before 3.0 allow local users with file-system access to execute arbitrary code. The Windows software installer passes a path containing spaces without enclosing quotation marks, allowing path resolution to select an attacker-controlled executable from an earlier path component. Exploitation requires high local privileges and control of a usable file location; successful interception runs the substituted code in the vulnerable process's security context.

The record

CVE
CVE-2025-59888
Published
Dec 26, 2025
Updated
Dec 26, 2025
Vendor
Eaton
Product
Eaton UPS Companion
Classifications
CWE-428, T1574.009
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Eaton · Eaton UPS Companionversion=0 <3.0

Published CVSS scores

6.7EatonCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-428Unquoted Search Path or Element
T1574.009Hijack Execution Flow: Path Interception by Unquoted Path

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo