Bug 2571536 (CVE-2026-18767) - CVE-2026-18767 TwinCAT: TwinCAT: Privilege escalation via exposed IOCTL function calls in TcRouter.sys
Summary: CVE-2026-18767 TwinCAT: TwinCAT: Privilege escalation via exposed IOCTL funct...
Keywords:
Status: NEW
Alias: CVE-2026-18767
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-11 08:31 UTC by OSIDB Bzimport
Modified: 2026-11-11 12:33 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-11 08:31:18 UTC 
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.
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