Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability

ALTO 8.8EXPLOITED (CISA KEV)CVE-2023-21674 · Published 10/01/2023 · updated 17/06/2026

Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 10/01/2023. Patch affected systems as an emergency.

En resumen

CVE-2023-21674 es una vulnerabilidad ALTO (CVSS 8.8).
Explotada activamente: CISA la añadió al catálogo KEV el 10/01/2023.
Probabilidad de explotación en los próximos 30 días (EPSS): 34.2%, mayor que el 98.4% de las vulnerabilidades.
Aún no hay una versión corregida: sigue el aviso del fabricante en Referencias.

Package	Affected versions	Patched versions
Windows Microsoft	Versions not published yet (product named by CISA KEV)

Description

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 · Patch
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2023-21674

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