CVE-2024-21338highunder attackransomwareCWE-822

CVE-2024-21338: high-severity vulnerability in Microsoft Windows 10 Version 1809

Windows Kernel Elevation of Privilege Vulnerability

Published · Updated

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88Vexday Risk Score

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

ssvc Actcvss 7.8epss 62%
from disclosure to weapon49 days
Published on NVDFeb 13
1st PoC+49d
CISA KEV+20d
Action required by CISAfederal deadline: 2024-03-25

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

In short

A flaw in the Windows Kernel allows an attacker with local access to run malicious code with system-level privileges, bypassing normal security restrictions. This is dangerous because it gives complete control over the computer.

Technical detail

This CWE-822 vulnerability in the Windows Kernel permits local privilege escalation through improper handling of kernel objects or memory. An authenticated local attacker can exploit this to execute arbitrary code in kernel mode, achieving full system compromise without user interaction beyond initial local access.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Windows Kernel 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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