---
id: CVE-2025-14252
title: >-
  An Improper Access Control vulnerability in Advantech SUSI driver (susi.sys)
  allows attackers to read/write arbitrary memory, I/O ports, and MSRs,
  resulting in privilege escalation, arbitrary code execution, and information
  disclosure
summary: >-
  An Improper Access Control vulnerability in Advantech SUSI driver (susi.sys)
  allows attackers to read/write arbitrary memory, I/O ports, and MSRs,
  resulting in privilege escalation, arbitrary code execution, and information
  disclosure. T…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
published: '2025-12-16'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T19:10:00.160'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14252'
references:
  - url: 'https://www.txone.com/psirt/advisories/CVE-2025-14252'
    label: 3ad20294-822c-4ebc-9301-f9a7cf62d46e
tags:
  - nvd
epss: 0.00129
epssPercentile: 0.02167
ingestedAt: '2026-10-07T20:46:46.949Z'
---

## Overview

An Improper Access Control vulnerability in Advantech SUSI driver (susi.sys) allows attackers to read/write arbitrary memory, I/O ports, and MSRs, resulting in privilege escalation, arbitrary code execution, and information disclosure. This issue affects Advantech SUSI: 5.0.24335 and prior.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.