CVE-2026-97771: 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 16.0.14334.20974 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20228Patch KB5002928
Event History
Frequently Asked Questions
What must an attacker do to exploit this vulnerability?
The attacker must cause a user to interact with malicious Excel content delivered over a network. No attacker privileges are required, and exploitation is rated low complexity.
Which Office deployments are listed as affected?
The listed products are Microsoft 365 Apps for Enterprise; Office LTSC 2021 and 2024 for 32-bit and 64-bit editions; Office 365 for Mac; and Office LTSC for Mac 2021 and 2024.
What impact could successful exploitation have?
Successful exploitation can allow code execution and is rated as having high impact on confidentiality, integrity, and availability.