CVE-2026-97761: Microsoft Office Excel Remote Code Execution Vulnerability
Microsoft Office Excel Remote Code Execution Vulnerability
Other sources
Stack-based buffer overflow 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 https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056
Event History
Frequently Asked Questions
Which Office deployments are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2024 for 32-bit and 64-bit editions, Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC for Mac 2021, and Microsoft Office 365 for Mac.
What does an attacker need to exploit this issue?
The vector is network-based and no attacker privileges are required, but user interaction is required. This indicates an attacker would need to induce a user to interact with the malicious content or request.
What is the potential security impact if exploitation succeeds?
The vulnerability is rated high severity with high impacts to confidentiality, integrity, and availability. Successful exploitation can allow code execution.