CLFS

CLFS attack - CVE-2023-28252 Since February 2022 was reported a new ransomware that appears to be using a Windows 0-day vulnerability, according to the research conducted by Trend Micro. More information about this ransomware can be found at this link. According to analysis by Kaspersky, the...

CVE-2021-43224-POC

CVE-2021-43224-POC Windows Common Log File System Driver POC maybe CVE-2021-43226 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43226 just bsod !!! tested on windows 20H2 ver 19042.1387...

CVE-2025-29824

CVE-2025-29824 win1021h2190445608x64 win1123h2226315126x64 testclient test program monitorclfssys driver to monitor all IRP requests of clfs poc Crash Blue screen poc LPE win10poc win11poc Compilation basic information Windows SDK version: 10.0 latest installed version Platform toolset: Visual...

SOC335-CVE-2024-49138-Exploitation-Detected

CVE-2024-49138 Exploitation Detection In this project, I investigated a simulated security incident on the LetsDefend platform, where a Windows machine was compromised through the exploitation of CVE-2024-49138—a privilege escalation vulnerability in the Windows Common Log File System CLFS driver...

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Time-of-check time-of-use toctou race condition in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally...

PT-2026-70490

Name of the Vulnerable Software and Affected Versions Windows Common Log File System Driver affected versions not specified Description A time-of-check time-of-use toctou race condition exists in the Windows Common Log File System Driver. This occurs when a system checks a condition such as a...

CVE-2026-40397

Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally...

Microsoft Windows Common Log File System Driver 数字错误漏洞

The Microsoft Windows Common Log File System Driver is a high-performance, general-purpose log file system API provided by Microsoft. It allows specialized client applications to utilize this subsystem, enabling multiple clients to share it for optimized log access. The Microsoft Windows Common L...

CVE-2026-2636 Denial of Service in Microsoft OS

This vulnerability is caused by a CWE‑159: "Improper Handling of Invalid Use of Special Elements" weakness, which leads to an unrecoverable inconsistency in the CLFS.sys driver. This condition forces a call to the KeBugCheckEx function, allowing an unprivileged user to trigger a system crash...

CVE-2026-2636 Denial of Service in Microsoft OS

This vulnerability is caused by a CWE‑159: "Improper Handling of Invalid Use of Special Elements" weakness, which leads to an unrecoverable inconsistency in the CLFS.sys driver. This condition forces a call to the KeBugCheckEx function, allowing an unprivileged user to trigger a system crash...

PT-2026-21986

Name of the Vulnerable Software and Affected Versions Windows versions prior to September 2025 cumulative update for Windows 11 2024 LTSC and Windows Server 2025 Windows 11 23H2 and earlier Description The issue is caused by improper handling of invalid use of special elements within the CLFS.sys...

EUVD-2020-2151

Malware in sbrugna...

EUVD-2016-4367

Malware in sbrugna...

VulnCheck KEV: CVE-2025-32706

Microsoft Windows Common Log File System CLFS Driver contains a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally...

Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability

Microsoft Windows Common Log File System CLFS Driver contains a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally...

Patch Tuesday - April 2025

Microsoft is addressing 121 vulnerabilities this April 2025 Patch Tuesday, which is more than twice as many as last month. Microsoft has evidence of in-the-wild exploitation for just one of the vulnerabilities published today, which is already reflected in CISA KEV. Once again, Microsoft has...

Patch Tuesday, December 2024 Edition

Microsoft today released updates to plug at least 70 security holes in Windows and Windows software, including one vulnerability that is already being exploited in active attacks. The zero-day seeing exploitation involves CVE-2024-49138, a security weakness in the Windows Common Log File System...

The vulnerability of the Windows Common Log File System (CLFS) driver in Windows operating systems allows a hacker to elevate their privileges to the SYSTEM level.

The vulnerability of the Windows Common Log File System CLFS driver in Windows operating systems is related to buffer overflows in dynamic memory. Exploiting this vulnerability can allow an attacker to elevate their privileges to the SYSTEM level...

Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability

Microsoft Windows Common Log File System CLFS driver contains a heap-based buffer overflow vulnerability that allows a local attacker to escalate privileges...

The vulnerability of the CLFS driver for Microsoft Windows operating systems allows a hacker to gain increased privileges.

The vulnerability of the CLFS driver in Microsoft Windows operating systems is related to errors in privilege management. Exploiting this vulnerability can allow an attacker to elevate their privileges to the SYSTEM level using a specially crafted blk-file...