Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-66807

Microsoft Office Graphics Component Remote Code Execution Vulnerability

Description

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Microsoft 365 Apps for Enterprise

  • 16.0.1 to < https://aka.ms/OfficeSecurityReleasesaffected

Microsoft Microsoft Office 2019

  • 19.0.0 to < https://aka.ms/OfficeSecurityReleasesaffected

Microsoft Microsoft Office 365 for Mac

  • 1.0.0 to < 16.112.26081010affected

Microsoft Microsoft Office LTSC 2021

  • 16.0.1 to < https://aka.ms/OfficeSecurityReleasesaffected

Microsoft Microsoft Office LTSC 2024

  • 16.0.0 to < https://aka.ms/OfficeSecurityReleasesaffected

Microsoft Microsoft Office LTSC for Mac 2021

  • 16.0.1 to < 16.112.26081010affected

Microsoft Microsoft Office LTSC for Mac 2024

  • 16.0.0 to < 16.112.26081010affected

References