Nov 2026: Microsoft Office Excel Remote Code Execution Vulnerability
CVE-2026-118700 Published on November 10, 2026

Microsoft Office Excel Remote Code Execution Vulnerability
Stack-based buffer overflow 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 Stack Overflow Vulnerability?

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CVE-2026-118700 has been classified to as a Stack Overflow vulnerability or weakness.


Products Associated with CVE-2026-118700

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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: