Vulnerabilities CVE-2024-21338

CVE-2024-21338

High

Open

KEV

TLP:CLEAR

Windows Kernel Elevation of Privilege Vulnerability

NVD CVE.org

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Description

Microsoft — Windows — Microsoft Windows Kernel contains an exposed IOCTL with insufficient access control vulnerability within the IOCTL (input and output control) dispatcher in appid.sys that allows a local attacker to achieve privilege escalation.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 59.81%

99th percentile
CVSS Vector: 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
Confidence: 100%
Published: Feb 13, 2024
Last Modified: Aug 10, 2026
CISA KEV
Date Added: Mar 4, 2024
Patch Due: Mar 25, 2024
Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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