CVE-2026-81954: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
— 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 16.0.5569.1003Patch KB5002904 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5569.1003Patch KB5002914 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20896 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.20960 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20204Patch KB5002910 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20136
Event History
Frequently Asked Questions
What access and user action does exploitation require?
The attack vector is local and the attacker does not need privileges. User interaction is required for exploitation.
Which products are listed as affected?
The affected software list includes Microsoft Office 2016, Microsoft Excel 2016, Microsoft 365 Apps for Enterprise, Office LTSC 2021 for 32-bit and 64-bit editions, Office LTSC for Mac 2021, and Office LTSC 2024 for 32-bit and 64-bit editions.