---
id: CVE-2026-15417
title: CP210x Denial of Service
summary: >-
  In the silabser.sys Windows 8 driver for CP210x devices, a local unprivileged
  user can use incorrect driver settings to cause a kernel crash.
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-369
vendor: Silicon Labs
product: silabser.sys driver
affected:
  - silabser.sys_driver <= 6.7.6
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T18:20:51.030961Z'
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T18:21:00.773Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-15417'
references:
  - url: >-
      https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1
tags:
  - cve.org
epss: 0.00125
epssPercentile: 0.01885
ingestedAt: '2026-09-11T16:45:48.027Z'
---

## Overview

In the silabser.sys Windows 8 driver for CP210x devices, a local unprivileged user can use incorrect driver settings to cause a kernel crash.

## Affected

- `silabser.sys_driver <= 6.7.6`

## Remediation

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