Tdelo64 Sys
Monthly
Local privilege escalation in Pegatron's Tdelo64.sys kernel driver allows any unprivileged user to perform arbitrary hardware I/O port reads and writes through the \\.\TdeIo device. The driver's TDE_IOCTL_INDEXIO_READ and TDE_IOCTL_INDEXIO_WRITE handlers lack authorization checks, letting a local attacker manipulate hardware registers to gain kernel-level control, tamper with firmware interfaces, or establish persistent low-level compromise. Reported by CERT/CC; no public exploit identified at time of analysis, and EPSS is low at 0.20% (10th percentile).
Privilege escalation to NT AUTHORITY\SYSTEM is achievable on Windows systems hosting the Pegatron Tdelo64.sys kernel-mode driver, which exposes the \\.\TdeIo device interface without enforcing caller privilege checks or validating user-supplied kernel memory addresses in its IOCTL dispatcher. Any local user can open the device interface and send crafted IOCTL requests to perform arbitrary kernel memory read and write operations, enabling full system compromise including credential theft and security product bypass. No public exploit code or CISA KEV listing has been identified at time of analysis; the vulnerability was reported to CERT/CC (VU#529388), and the provided CVSS score of 6.2 materially understates the real-world impact given the described kernel write capability.
Local privilege escalation in Pegatron's Tdelo64.sys kernel driver allows any unprivileged user to perform arbitrary hardware I/O port reads and writes through the \\.\TdeIo device. The driver's TDE_IOCTL_INDEXIO_READ and TDE_IOCTL_INDEXIO_WRITE handlers lack authorization checks, letting a local attacker manipulate hardware registers to gain kernel-level control, tamper with firmware interfaces, or establish persistent low-level compromise. Reported by CERT/CC; no public exploit identified at time of analysis, and EPSS is low at 0.20% (10th percentile).
Privilege escalation to NT AUTHORITY\SYSTEM is achievable on Windows systems hosting the Pegatron Tdelo64.sys kernel-mode driver, which exposes the \\.\TdeIo device interface without enforcing caller privilege checks or validating user-supplied kernel memory addresses in its IOCTL dispatcher. Any local user can open the device interface and send crafted IOCTL requests to perform arbitrary kernel memory read and write operations, enabling full system compromise including credential theft and security product bypass. No public exploit code or CISA KEV listing has been identified at time of analysis; the vulnerability was reported to CERT/CC (VU#529388), and the provided CVSS score of 6.2 materially understates the real-world impact given the described kernel write capability.