CVE-2026-97767: Microsoft Office Excel Remote Code Execution Vulnerability
Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office Excel Remote Code Execution Vulnerability
— 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 16.0.10417.20228Patch KB5002928 - 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
Does exploitation require authentication or user interaction?
No privileges are required, but exploitation requires user interaction. The attack vector is network-based and has low attack complexity.
Which Microsoft Office products are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Office 365 for Mac, Microsoft Office Online Server, Office LTSC 2021 for 64-bit editions and for Mac, and Office LTSC 2024 for 32-bit editions, 64-bit editions, and for Mac.
What is the potential security impact if exploitation succeeds?
Successful exploitation can allow code execution. The supplied metrics rate confidentiality, integrity, and availability impact as high.