CVE-2026-100212: Microsoft Office Excel Remote Code Execution Vulnerability
Microsoft Office Excel Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20228Patch KB5002928 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.114.26101123 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attacker does not need prior privileges and can attack over a network, but exploitation requires user interaction. The reported attack complexity is low.
Which Microsoft products are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Excel, Office LTSC for Mac 2021, Office LTSC 2024 for 32-bit and 64-bit editions, Office LTSC for Mac 2024, Office Online Server, and Office 365 for Mac.