CVE-2026-21251

HIGH

7.8

Descricao

Use after free in Windows Cluster Client Failover allows an authorized attacker to elevate privileges locally.

Detalhes CVE

Pontuacao CVSS v3.17.8

SeveridadeHIGH

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado2/10/2026

Ultima modificacao2/11/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

microsoft:windows_server_2016microsoft:windows_server_2019microsoft:windows_server_2022microsoft:windows_server_2022_23h2microsoft:windows_server_2025

Fraquezas (CWE)

CWE-416

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21251(secure@microsoft.com)

Correlacoes IOC

Sem correlacoes registradas

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