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CVE-2026-18769

7.8, high

A local low privileged attacker can move arbitrary physical memory content via TcRouter.sys because of exposed IOCTL function calls…

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
11 Nov 2026yesterday

Description

A local low privileged attacker can move arbitrary physical memory content via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.

Details

Vendor
Beckhoff Automation
Product
TcRouter.sys for Windows on x64 3.1.0.2364
Weakness
CWE-782 (opens in a new tab)
Status
Received
Updated
11 Nov 2026
Assigner
info@cert.vde.com

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Beckhoff Automation CVEs

Every Beckhoff Automation CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-18767 A local low privileged attacker or process can access I/O ports via TcRouter.sys because of exposed IOCTL function calls resulting in a… 7.8, high
  • CVE-2026-18768 A local low privileged attacker can access arbitrary physical memory or define its mapping via TcRouter.sys because of exposed IOCTL… 7.8, high

Beyond this page

Is CVE-2026-18769 in your network?

This page tells you how dangerous CVE-2026-18769 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 12 Nov 2026, not the live upstream state.