PT-2026-58523 · Microsoft · 365 Apps For Enterprise+7

Publicado 2026-07-14 · Atualizado 2026-07-14 · CVE-2026-55018

NVD

CVSS v3.1

7.8

Alta

Vetor base

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Correção

Use After Free

Enumeração de Fraquezas

CWE-416

Identificadores relacionados

CVE-2026-55018

Produtos afetados

365 Apps For Enterprise

Office 2016

Office 2019

Office 365 For Mac

Office Ltsc 2021

Office Ltsc 2024

Office Ltsc For Mac 2021

Office Ltsc For Mac 2024

Referências · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55018 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-55018 · Nota de Segurança