CVE-2026-14960

Critical

Description

Pegatron `Tdelo64.sys` improperly exposes privileged hardware access functionality through the `\\.\TdeIo` device interface. IOCTL handlers including `TDE_IOCTL_INDEXIO_READ` and `TDE_IOCTL_INDEXIO_WRITE` permit unprivileged user-mode callers to perform arbitrary hardware I/O port reads and writes without authorization checks. A local attacker can abuse this functionality to manipulate hardware registers, tamper with firmware-related interfaces, cause system instability, or establish persistent low-level compromise.

SeverityCritical
CVSS9.8
Exploit probability—
ProductTdelo64.sys
PublishedJul 15, 2026
First seenJul 15, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Pegatron Corp. Tdelo64.sys02-17-2025—

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CVE-2026-14960 · Tdelo64.sys · Dark Radar