VU#529388: Privilege escalation vulnerability via unprotected IOCTL interface in Pegatron Tdelo64.sys

Summary

Overview A privilege escalation vulnerability exists in the tdeio64.sys driver due to an unprotected input/output control (IOCTL) dispatch routine that fails to validate the origin and permissions of user-supplied requests. An unprivileged local attacker can abuse exposed IOCTL dispatch routines [RM1.1][MB1.2]to perform arbitrary kernel memory read and write operations, ultimately obtaining NT AUTHORITY\SYSTEM privileges and compromising the security of the affected system. Description The tdeio64.sys driver distributed by Pegatron Corporation, a Taiwanese electronics manufacturer that produces motherboards and OEM components, is a Windows Driver Model (WDM) driver that provides low-level access to system I/O ports and hardware components. The driver exposes the \\.\TdeIo device interface and processes privileged IOTL requests without... Related CVEs: CVE-2026-14960, CVE-2026-14961.

Why it matters

CERT/CC notes often cover coordinated disclosures, multi-vendor exposure, infrastructure risk, or cases where remediation guidance is still developing.

Operator check

Review the CERT/CC Vulnerability Note and compare the affected vendor and product list against your inventory. Apply vendor fixes or compensating controls for Tdelo64.sys where available.

Sources