Improper privilege management in Pegatron Corp. Tdelo64.sys
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269 and CWE-284.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Pegatron Corp. | Tdelo64.sys | 02-17-2025 – 02-17-2025 | — | No fix listed | CNA |
- Tdelo64.sys VendorPegatron Corp. Affected 02-17-2025 – 02-17-2025 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14960
- 2026-10-03 Alias added: GHSA-vgx6-wf36-3h9h
References
More Pegatron Corp. vulnerabilities
- TI-2026-12599 Improper input validation in Pegatron Corp. Tdelo64.sys CVSS 3.1MEDIUM 6.2
Sources
- CVE-2026-14960 · CVE Program
- CVE-2026-14960 · NVD
- FIRST EPSS
- GHSA-vgx6-wf36-3h9h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences