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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-44817

Microsoft Excel Remote Code Execution Vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
microsoft

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel 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 Excel 2016

  • 16.0.0.0 to < 16.0.5556.1001affected

Microsoft Microsoft Office 2019

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

Microsoft Microsoft Office 365 for Mac

  • 1.0.0 to < 16.110.26061317affected

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 < 16.110.26061317affected

Microsoft Microsoft Office LTSC for Mac 2024

  • 16.0.0 to < 16.110.26061317affected

Microsoft Office Online Server

  • 16.0.0.0 to < 16.0.10417.20137affected

References