Beckhoff Automation
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 full compromise of the a
CVE-2026-18767 Nov 11, 2026 Source: Vendor
In brief. Beckhoff Automation published 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 full compromise of the a on November 11, 2026. It credits 3 researchers and teams for 1 CVE.
A local low privileged attacker or process can access I/O ports via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-18767
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