Privilege escalation in Pegatron Corp. Tdelo64.sys
CVE-2026-14960
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.
Vulnerability class: Privilege Escalation
EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Pegatron Corp. Tdelo64.sys — versions 02-17-2025
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2026-14960?
- CVE-2026-14960 is a critical-severity vulnerability in Pegatron Corp. Tdelo64.sys, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-07-15.
- How severe is CVE-2026-14960?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2026-14960 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.