CVE-2025-1055 PoC — K7 Security Anti-Malware: IOCTL in K7RKScan.sys Allows Arbitrary Termination of High-Privilege and System Processes by a

Source

https://github.com/diego-tella/CVE-2025-1055-poc

Associated Vulnerability

Title:K7 Security Anti-Malware: IOCTL in K7RKScan.sys Allows Arbitrary Termination of High-Privilege and System Processes by a Low-Privilege User (CVE-2025-1055)
Description:A vulnerability in the K7RKScan.sys driver, part of the K7 Security Anti-Malware suite, allows a local low-privilege user to send crafted IOCTL requests to terminate a wide range of processes running with administrative or system-level privileges, with the exception of those inherently protected by the operating system. This flaw stems from missing access control in the driver's IOCTL handler, enabling unprivileged users to perform privileged actions in kernel space. Successful exploitation can lead to denial of service by disrupting critical services or privileged applications.

Description

PoC for CVE-2025-1055 and CVE-2025-52915 using K7RKScan.sys

Readme

# CVE-2025-1055-poc
PoC for CVE-2025-1055 and CVE-2025-52915 using K7RKScan.sys.  This PoC use the `0x222018` IOCTL to terminate arbitrary processes.

# Usage

Installing driver:

```
sc.exe create K7RKScan_1516.sys binPath=C:\Users\Administrator\Downloads\K7RKScan_1516.sys type=kernel && sc.exe start K7RKScan_1516.sys
```

Running PoC:

```
exploit.exe
```

It will terminate the `MsMpEng.exe` process (windows defender).

# References

https://blacksnufkin.github.io/posts/BYOVD-CVE-2025-52915/

File Snapshot

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