MSI KernCoreLib64.sys Privilege Escalation via IOCTL Handlers

MSI Feature Manager contains a local privilege escalation vulnerability in the KernCoreLib64.sys kernel driver that allows any locally logged-on user to perform arbitrary physical memory read/write and unrestricted I/O port operations by accessing exposed IOCTL handlers without administrator privileges. Attackers can exploit the accessible device object through IOCTL handlers to manipulate kernel objects, tamper with kernel-mode callbacks, bypass Protected Process Light protections, and disable security software.

GIGABYTE｜Gigabyte Control Center - Improper Access Control

The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technology has an Improper Access Control vulnerability. Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges.

Access Control Deficiency in ExpressUpdate Agent Enables SYSTEM-Privilege Code Execution

An access control deficiency vulnerability exists in ExpressUpdate Agent for Windows. If a malicious user gains access to the product, arbitrary code could be executed with SYSTEM privileges.

Insufficient IOCTL Access Control Exposes Physical Memory to Non-Admin Users

Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control. A logged-in user with no administrative privilege may access physical memory.

Netskope Client Exposed IOCTL with Insufficient Access Controls

Netskope was notified about a potential gap in its Netskope Client for Windows systems where a malicious insider with administrative privileges can potentially tamper with the customer IOCTL by sending crafted IOCTL requests to the driver. A successful exploit can result in the bypassing of all anti-tampering protections for the NSClient.Affected Product(s) and Version(s) * Product Name: Netskope Client * Affected Platform: Windows * Affected Version: All version below R138

CVE-2026-8501

Improper access control in the PCTCore64.sys Windows kernel driver from PC Tools Internet Security allows user-mode processes to access the PCTCoreDriver WDM device interface and invoke privileged IOCTL handlers. A local attacker with the ability to access or load the affected driver can exploit this vulnerability to perform sensitive and privileged operations on the target system.

Privilege Escalation via Unchecked Debug IOCTLs in Realtek RTL8192CD Wi‑Fi Driver

The rtl8192cd Wi-Fi kernel driver in the Realtek rtl819x Jungle SDK (all known versions through v3.4.14B) does not perform any access control checks on the write_mem (ioctl 0x89F5) and read_mem (ioctl 0x89F6) debug handlers, which are compiled into production builds via the unconditionally defined _IOCTL_DEBUG_CMD_ macro in 8192cd_cfg.h

An exposed ioctl in the IMFForceDelete driver of IObit Malware Fighter v12.1.0 allows attackers to arbitrarily delete files and escalate privileges.

An issue in the component ControlCenter.sys/ControlCenter64.sys of ThundeRobot Control Center v2.0.0.10 allows attackers to access sensitive information, execute arbitrary code, or escalate privileges via sending crafted IOCTL requests.

A potential insufficient access control vulnerability was reported in the Lenovo Dispatcher 3.0 and Dispatcher 3.1 drivers used by some Lenovo consumer notebooks that could allow an authenticated local user to execute code with elevated privileges. The Lenovo Dispatcher 3.2 driver is not affected. This vulnerability does not affect systems when the Windows feature Core Isolation Memory Integrity is enabled. Lenovo systems preloaded with Windows 11 have this feature enabled by default.

An issue discovered in the DeviceIoControl component in ASUS Fan_Xpert before v.10013 allows an attacker to execute arbitrary code via crafted IOCTL requests.

An issue in the component ATSZIO64.sys of ASUSTeK Computer Inc ASUS ATSZIO Driver v0.2.1.7 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

Hangzhou Shunwang Rentdrv2 before 2024-12-24 allows local users to terminate EDR processes and possibly have unspecified other impact via DeviceIoControl with control code 0x22E010, as exploited in the wild in October 2023.

NVIDIA Hopper HGX for 8-GPU contains a vulnerability in the GPU vBIOS that may allow a malicious actor with tenant level GPU access to write to an unsupported registry causing a bad state. A successful exploit of this vulnerability may lead to denial of service.

An issue in the component AsUpIO64.sys of ASUSTeK Computer Inc ASUS USB 3.0 Boost Storage Driver 5.30.20.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

An issue in the component AsusBSItf.sys of ASUSTeK Computer Inc ASUS BIOS Flash Driver v3.2.12.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

Code Execution / Escalation of Privileges in ThrottleStop

ThrottleStop.sys, a legitimate driver, exposes two IOCTL interfaces that allow arbitrary read and write access to physical memory via the MmMapIoSpace function. This insecure implementation can be exploited by a malicious user-mode application to patch the running Windows kernel and invoke arbitrary kernel functions with ring-0 privileges. The vulnerability enables local attackers to execute arbitrary code in kernel context, resulting in privilege escalation and potential follow-on attacks, such as disabling security software or bypassing kernel-level protections. ThrottleStop.sys version 3.0.0.0 and possibly others are affected. Apply updates per vendor instructions.

Exposed IOCTL in MxGeneralIo Utility Enables Privilege Escalation and DoS

An exposed IOCTL with an  insufficient access control vulnerability has been identified in the utility, MxGeneralIo, for Moxa’s industrial x86 computers. The affected utility, MxGeneralIo, exposes IOCTL methods that permit direct read and write access to MSR and system memory. A local attacker with high privileges could abuse these interfaces to perform unauthorized operations. Successful exploitation may result in privilege escalation on Windows 7 systems or cause a system crash (BSoD) on Windows 10 and 11 systems, leading to a denial-of-service condition. The vulnerability could slightly affect the confidentiality and integrity of the device, but availability might be heavily impacted. No impact to the subsequent system has been identified.

Exposed ioctl with insufficient access control in the firmware for some Intel(R) Ethernet Connection E825-C. before version NVM ver. 3.84 within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.