Privilege escalation in Pegatron Corp. Tdelo64.sys

CVE-2026-14961

Pegatron `Tdelo64.sys` exposes a privileged device interface, `\\.\TdeIo`, that fails to properly restrict access to sensitive IOCTL functionality. The driver's IOCTL dispatcher does not validate caller privileges or verify user-supplied kernel memory addresses before performing memory operations. By sending crafted requests to IOCTL, a local attacker can achieve arbitrary kernel memory read and write operations, leading to privilege escalation to `NT AUTHORITY\SYSTEM`, security product bypass, credential theft, or complete system compromise.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.