CVE-2026-63513CriticalCVSS 7.8

Microsoft Office Graphics Component Remote Code Execution Vulnerability

Published
August 14, 2026
Last Modified

🔗 CVE IDs covered (1)

📋 Description

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

🎯 Affected products13

  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Office 2016 (32-bit edition)
  • Microsoft Office 2016 (64-bit edition)
  • 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

✅ Remediation

KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases KBRelease Notes (Security Update) — fixed build 16.112.26081010 KB5002897 (Security Update) — fixed build 16.0.5565.1001

🔗 References (6)