Nov 2026: Microsoft Office Excel Remote Code Execution Vulnerability
CVE-2026-118708 Published on November 10, 2026

Microsoft Office Excel Remote Code Execution Vulnerability
Release of invalid pointer or reference in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
NO
Technical Impact:
TOTAL

Weakness Type

Release of Invalid Pointer or Reference

The application attempts to return a memory resource to the system, but calls the wrong release function or calls the appropriate release function incorrectly.


Products Associated with CVE-2026-118708

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Affected Versions

Microsoft 365 Apps for Enterprise: Microsoft Office 365 for Mac: Microsoft Office LTSC 2021: Microsoft Office LTSC 2024: Microsoft Office LTSC for Mac 2021: Microsoft Office LTSC for Mac 2024: Microsoft Office Online Server: