CVE Watch—

CVE-2024-21338

Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability

CVSS

—

Sin CVSS

EPSS

51.9%

p99

KEV

SÍ

4 mar 2024

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

51.9%EPSS · 30 días51.9%

2026-06-302026-07-16

Ficha del catálogo KEV

Producto

Microsoft / Windows

Vulnerabilidad

Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability

Añadido a KEV

4 mar 2024

Remediar antes de

25 mar 2024

Uso conocido en ransomware

Sí

Descripción resumida

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.

Acción requerida

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

Notas

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338; https://nvd.nist.gov/vuln/detail/CVE-2024-21338

CVEs relacionados

CVECVSSEPSSKEVRExplotTítuloVis.

CVE-2025-59287—

100.0%

KEV—80Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability—CVE-2021-34527—

100.0%

KEV—80Microsoft Windows Print Spooler Remote Code Execution Vulnerability—CVE-2022-30190—

99.9%

KEV—80Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability—CVE-2023-36884—

99.9%

KEV—80Microsoft Windows Search Remote Code Execution Vulnerability—CVE-2008-4250—

99.9%

KEV—80Microsoft Windows Buffer Overflow Vulnerability—CVE-2024-21412—

99.9%

KEV—80Microsoft Windows Internet Shortcut Files Security Feature Bypass Vulnerability—