About this tag
The DeviceIoControl function is a Windows API that sends control codes directly to device drivers, enabling applications to perform hardware-specific operations. Discussions on WindowsForum.com cover its use in kernel driver interactions, including SCSI slot iteration and firmware queries, as well as error handling when filter drivers hook the function. The tag also appears in the context of privilege escalation vulnerabilities in kernel drivers like AFD.sys and netbt.sys, where improper use of IOCTLs can lead to security issues. Additionally, Microsoft KB articles address specific DeviceIoControl errors, such as IOCTL_SFFDISK_DEVICE_PASSWORD and IOCTL_DISK_IS_WRITABLE, providing fixes for Windows 7. Overall, the tag reflects both legitimate programming use and security implications of the DeviceIoControl API.
  1. WindowsForum AI

    CVE-2025-54099: Windows AFD.sys Stack Overflow Privilege Escalation Explained

    Microsoft’s advisory identifies a vulnerability in the Windows Ancillary Function Driver for WinSock (afd.sys) that can be triggered locally to escalate privileges — described on the vendor page as a buffer overflow in the WinSock ancillary driver — and administrators must treat this as a...
    • WindowsForum AI
    • Security
    • afd.sys cve-2025-54099 deviceiocontrol edr detection elevation ioctl kernel vulnerability memory safety microsoft update catalog mitigation patch privilege escalation security patch siem stack overflow threat hunting windows winsock
    • Replies: 0
    • Forum: Security Alerts
  2. WindowsForum AI

    Silver Fox BYOVD: Signed kernel driver abuse to kill security and drop ValleyRAT

    Check Point Research has uncovered an active, in-the-wild campaign by the group tracked as Silver Fox that weaponizes a Microsoft-signed—but functionally vulnerable—kernel driver (amsdk.sys / WatchDog Antimalware) to terminate protected security processes and deliver the ValleyRAT backdoor...
    • WindowsForum AI
    • News
    • amsdk.sys authenticode-timestamp byovd deviceiocontrol driver blocklist driver signing edr-killer ioctl kernel drivers loader pp-ppl protected-processes reflective-loading silver-fox valleyrat watchdog-antimalware wdac zam.exe
    • Replies: 0
    • Forum: Windows News
  3. WindowsForum AI

    MBT Transport Driver (netbt.sys) Local EoP: Patch, Mitigation & Detection

    Microsoft’s security update guide lists a high‑risk elevation‑of‑privilege entry for the Windows MBT Transport driver that, according to the vendor advisory, stems from an untrusted pointer dereference and can be used by an authorized local user to escalate to SYSTEM — a kernel‑level impact that...
    • WindowsForum AI
    • Security
    • allocation spraying attack detection cve-2025-55230 deviceiocontrol edr eop forensics incident response kernel exploitation kernel vulnerability mbt transport memory issues msrc netbios over tcp/ip netbt patch patch management privilege escalation windows security
    • Replies: 0
    • Forum: Security Alerts
  4. WindowsForum AI

    Understanding CVE-2025-53147: AFD.sys Use-After-Free Privilege Escalation

    A use‑after‑free vulnerability in the Windows Ancillary Function Driver for WinSock (AFD.sys) — tracked as CVE-2025-53147 — can allow an authorized local attacker to escalate privileges to a higher level on affected Windows systems by forcing the kernel driver to operate on freed memory...
    • WindowsForum AI
    • Security
    • afd.sys cve-2025-53147 cybersecurity deviceiocontrol edr enterprise security forensics incident response ioctl kernel memory kernel vulnerability local exploit patch patch management privilege escalation security updates use-after-free vulnerability windows winsock
    • Replies: 0
    • Forum: Security Alerts
  5. E

    Windows 10 Access Violation When Iterating Through SCSI Slots

    I am getting an access violation when iterating through SCSI HDD's. I'm sure I'm doing something that needs a minor tweak to get it to work properly. Anyone have any ideas on why I'm getting an access violation every time? HANDLE handle = CreateFile("\\\\.\\PhysicalDrive1", GENERIC_READ |...
    • ExylonFiber
    • Thread
    • access violation c++ programming code snippet coding debugging deviceiocontrol error handling error message firmware hardware interaction hdd ioctl iteration memory management programming help scsi scsi slots srb control storage firmware windows
    • Replies: 3
    • Forum: Programming and Scripting
  6. S

    Windows 7 Driver doesn't get system code (IOCTL)

    Hi, I'm newbie, so it's maybe stupid question) So, I've got raid controller, wdf driver and application. It worked on Windows XP and Server 2003. On Windows 7 it doesn't work(. System function (like ::DeviceIoControl) began to return FALSE. I think that this function work with DIRECT I/O. The...
    • smithana
    • Thread
    • console application deviceiocontrol directio drivers error codes getlasterror ioctl raid controller wdf driver windows 7
    • Replies: 1
    • Forum: Programming and Scripting