CVE-2026-108441: 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 https://aka.ms/OfficeSecurityReleases - 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 16.114.26101123 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056
Event History
Frequently Asked Questions
What would an attacker need to do to exploit this vulnerability?
The attacker would need to deliver a malicious Word document or other content that causes Word to process the heap-based buffer overflow. Exploitation requires user interaction, but does not require the attacker to have prior privileges.
Which deployments are affected?
Affected products include Microsoft 365 Apps for Enterprise; Office LTSC 2021 and 2024 for 32-bit and 64-bit editions; Office LTSC for Mac 2021 and 2024; and Microsoft Office 365 for Mac. The provided data does not identify unaffected versions or configurations.
What is the likely impact of successful exploitation?
Successful exploitation can allow code execution with high impacts to confidentiality, integrity, and availability. The vulnerability is network-reachable and has low attack complexity, although user interaction is required.