CVE-2026-105718: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Other sources
Out-of-bounds read 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 16.0.17932.21056 - 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
Event History
Frequently Asked Questions
Does exploitation require prior access or elevated privileges?
No privileges are required, and the attack vector is network-based. However, user interaction is required for exploitation.
Which Microsoft products are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Excel, Microsoft Office 365 for Mac, Office LTSC 2021 for 64-bit editions, Office LTSC for Mac 2021, Office LTSC 2024 for 32-bit and 64-bit editions, and Office LTSC for Mac 2024.