CVE-2019-0959

HIGH

Windows Common Log File System - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-0959. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages a race condition in the Windows kernel's CmpAddRemoveContainerToCLFSLog function to create arbitrary directories via mount point abuse, leading to privilege escalation. It requires a race condition win between directory creation and deletion.

Description

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by correcting how CLFS handles objects in memory.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdoswindows
https://www.exploit-db.com/exploits/47028

This exploit leverages a race condition in the Windows kernel's CmpAddRemoveContainerToCLFSLog function to create arbitrary directories via mount point abuse, leading to privilege escalation. It requires a race condition win between directory creation and deletion.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Racy
Target: Windows 10 1809
Auth required
Prerequisites: Windows 10 1809 · User-level access · Multi-core CPU for race condition
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 7.0
EPSS 0.0292
EPSS Percentile 85.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (6)
microsoft/windows_10 1803
microsoft/windows_10 1809
microsoft/windows_10 1903
microsoft/windows_server_2016 1803
microsoft/windows_server_2016 1903
microsoft/windows_server_2019
Published Jun 12, 2019
Tracked Since Feb 18, 2026