Nov 2026: Microsoft Office Excel Remote Code Execution Vulnerability
CVE-2026-118730 Published on November 10, 2026

Microsoft Office Excel Remote Code Execution Vulnerability
Use after free 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

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-2026-118730 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-118730

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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: