CVE-2026-97009: Microsoft Office Excel Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
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 16.0.17932.21056 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974
Event History
Frequently Asked Questions
What user interaction is required for exploitation?
The vulnerability has a user-interaction requirement. An attacker would need a user to interact with attacker-controlled content in Excel before code execution can occur.
Is this exploitable remotely without access to the target system?
No. The vector is local, so exploitation requires local access or execution context on the affected system; the provided data does not indicate a network-based attack path.
Which Office deployments are identified as affected?
The affected software list includes Microsoft 365 Apps for Enterprise and Microsoft Office LTSC 2021 and 2024, in the listed 32-bit and 64-bit editions.