CVE-2026-21255

HIGH

8.8

Descripcion

Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.

Detalles CVE

Puntuacion CVSS v3.18.8

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado2/10/2026

Ultima modificacion2/11/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

microsoft:windows_10_1607microsoft:windows_10_1809microsoft:windows_10_21h2microsoft:windows_10_22h2microsoft:windows_11_23h2microsoft:windows_11_24h2microsoft:windows_11_25h2microsoft:windows_server_2016microsoft:windows_server_2019microsoft:windows_server_2022microsoft:windows_server_2022_23h2microsoft:windows_server_2025

Debilidades (CWE)

CWE-284

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21255(secure@microsoft.com)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.