Microsoft Office Excel Remote Code Execution Vulnerability
Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely CVE-2026-118708 · score 8.8/10
What could go wrong?
An attacker could run their own programs on your computer from far away, without sitting at it.
How urgent is it?
Check Microsoft’s page for details.
Who is affected?
Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Office Online Server, Microsoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions and 2 more versions
What should I do?
Install this month’s updates via Windows Update, Intune or your update tool, then restart.
Known problems
Microsoft lists known issues per update: KB5002946. Official page.