CVE-2026-108447: 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 16.0.17932.21056 - 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 must an attacker do to exploit this vulnerability?
An attacker must cause a user to interact with malicious content, as indicated by the required user interaction in the severity vector. The vulnerability is remotely exploitable and does not require the attacker to have prior privileges.
Which Office deployments are identified as affected?
The affected software list includes Microsoft 365 Apps for Enterprise and Microsoft Office LTSC 2021 and LTSC 2024, in both 32-bit and 64-bit editions where listed.
What could a successful exploit allow?
Successful exploitation could allow code execution and has high potential impact on confidentiality, integrity, and availability, according to the supplied severity vector.