PT-2026-58296 · Microsoft · 365 Apps For Enterprise+4

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-47290

NVD

CVSS v3.1

7.8

High

Base vector

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.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-47290

Affected Products

365 Apps For Enterprise

Office 2016

Office 2019

Office Ltsc 2021

Office Ltsc 2024

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47290 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-47290 · Security Note