Mar 2026: Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-26107 Published on March 10, 2026
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2026-26107 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2026-26107
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0.0 and below 16.0.5543.1000 is affected.
- Version 19.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.0 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 16.0.1 and below 16.107.26030819 is affected.
- Version 16.0.0 and below 16.107.26030819 is affected.
- Version 16.0.0.0 and below 16.0.10417.20102 is affected.