CVE-2022-24521highunder attackransomwareCWE-787

CVE-2022-24521: high-severity vulnerability in Microsoft Windows 10 Version 1507

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Published · Updated

71Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 7.8epss 7.1%
from disclosure to weapon1406 days
Published on NVDApr 15
1st PoC+1406d
CISA KEVApr 13
exploitation probability
7.1%top 6% of all CVEs
observed exploitation
yesCISA + VulnCheck
2 public exploit(s)
Action required by CISAfederal deadline: 2022-05-04

Apply updates per vendor instructions.

In short

A flaw in Windows' Common Log File System driver allows an attacker with local access to run malicious code with elevated privileges. This bypasses security protections and gives the attacker full control over the system.

Technical detail

Buffer overflow (CWE-787) in the CLFS driver allows local privilege escalation when a user interacts with specially crafted log file structures. An attacker with local access can trigger out-of-bounds memory writes to execute arbitrary code in kernel context.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
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