PT-2026-58566 · Microsoft · 365 Apps For Enterprise+7

Publicado 2026-07-14 · Atualizado 2026-07-14 · CVE-2026-55123

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

Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

Correção

Heap Based Buffer Overflow

Enumeração de Fraquezas

CWE-681

CWE-122

Identificadores relacionados

CVE-2026-55123

Produtos afetados

365 Apps For Enterprise

Office 2019

Office 365 For Mac

Office Ltsc 2021

Office Ltsc 2024

Office Ltsc For Mac 2021

Office Ltsc For Mac 2024

Powerpoint 2016

Referências · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55123 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-55123 · Nota de Segurança