CVE-2026-55032HighCVSS 7.8

Microsoft Word Remote Code Execution Vulnerability

Published
July 17, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 Description

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

🎯 Affected products16

  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Office 2019 for 32-bit editions
  • Microsoft Office 2019 for 64-bit editions
  • Microsoft Office 365 for Mac
  • Microsoft Office LTSC 2021 for 32-bit editions
  • Microsoft Office LTSC 2021 for 64-bit editions
  • Microsoft Office LTSC 2024 for 32-bit editions
  • Microsoft Office LTSC 2024 for 64-bit editions
  • Microsoft Office LTSC for Mac 2021
  • Microsoft Office LTSC for Mac 2024
  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Server Subscription Edition
  • Microsoft Word 2016 (32-bit edition)
  • Microsoft Word 2016 (64-bit edition)

✅ Remediation

KB5002891 (Security Update) — fixed build 16.0.5561.1001 KB5002892 (Security Update) — fixed build 16.0.5561.1001 KB5002883 (Security Update) — fixed build 16.0.10417.20175 KB5002885 (Security Update) — fixed build 16.0.10417.20175 KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases KBRelease Notes (Security Update) — fixed build 16.111.26071215 KB5002882 (Security Update) — fixed build 16.0.19725.20434 KB5002890 (Security Update) — fixed build 16.0.5561.1000

🔗 References (16)