CVE-2026-108430: Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft Office Word 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 16.114.26101123 - 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 does an attacker need to exploit this issue?
The attacker does not need prior privileges and can attempt exploitation over a network, but user interaction is required. The vulnerability can lead to code execution with high impact to confidentiality, integrity, and availability.
Which deployments should be treated as affected?
Treat installations of the listed Microsoft 365 Apps for Enterprise, Office 365 for Mac, Office LTSC 2021, and Office LTSC 2024 Word product editions as affected. The provided data does not identify unaffected versions or configurations.