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CVE-2025-1055

MediumPublished

K7 Security Anti-Malware: IOCTL in K7RKScan.sys Allows Arbitrary Termination of High-Privilege and System Processes by a Low-Privilege User

Published: Jun 10, 2025
Updated: Jun 11, 2025
Assigning CNA: Pentraze
Evidence observed: Aug 5, 2026

Primary CVSS

5.6/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS probability estimate

0.2%

Low · next 30 days

Percentile: 12.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2025-1055-pocPoC
PoC for CVE-2025-1055 and CVE-2025-52915 using K7RKScan.sys
BYOVDPoC
BYOVD research use cases featuring vulnerable driver discovery and reverse engineering methodology. (CVE-2025-52915, CVE-2025-1055, CVE-2026-3609, CVE-2026-8501).

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