CVE-2026-14961 Pegatron Corp. CVE debrief

Who should care

Defenders responsible for systems using Pegatron Tdelo64.sys driver, security teams, and administrators should assess exposure and prioritize remediation. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-14961 allows local attackers to escalate privileges and potentially bypass security products or steal credentials. Defenders should assess exposure, prioritize remediation, and implement compensating controls to restrict access to sensitive IOCTL functionality.

• Privilege escalation to NT AUTHORITYSYSTEM
• Security product bypass and credential theft
• Complete system compromise through arbitrary kernel memory operations

Technical summary

The Pegatron Tdelo64.sys driver exposes a privileged device interface, TdeIo, that fails to properly restrict access to sensitive IOCTL functionality. A local attacker can send crafted requests to IOCTL to achieve arbitrary kernel memory read and write operations, leading to privilege escalation to NT AUTHORITYSYSTEM. The driver's IOCTL dispatcher does not validate caller privileges or verify user-supplied kernel memory addresses before performing memory operations. This vulnerability allows local attackers to escalate privileges and potentially bypass security products or steal credentials.

Defensive priority

High

Recommended defensive actions

• Review and assess exposure of systems using Pegatron Tdelo64.sys driver
• Verify if vulnerable versions are in use and prioritize remediation
• Implement compensating controls to restrict access to sensitive IOCTL functionality
• Monitor for suspicious activity related to IOCTL requests
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Pegatron's Tdelo64.sys driver. The driver's IOCTL dispatcher does not validate caller privileges or verify user-supplied kernel memory addresses before performing memory operations.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.