Oct 2026: Microsoft Office Excel Remote Code Execution Vulnerability
CVE-2026-97746 Published on October 13, 2026
Microsoft Office Excel Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Weakness Type
What is an Integer underflow Vulnerability?
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This can happen in signed and unsigned cases.
CVE-2026-97746 has been classified to as an Integer underflow vulnerability or weakness.
Products Associated with CVE-2026-97746
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below https://aka.ms/OfficeSecurityReleases is affected.
- Version 1.0.0 and below 16.114.26101123 is affected.
- Version 16.0.1 and below 16.0.14334.20974 is affected.
- Version 16.0.0 and below 16.0.17932.21056 is affected.
- Version 16.0.1 and below 16.114.26101123 is affected.
- Version 16.0.0 and below 16.114.26101123 is affected.
- Version 16.0.0.0 and below 16.0.10417.20228 is affected.