CVE-2026-108431: Microsoft Office Word Remote Code Execution Vulnerability
Microsoft Office Word Remote Code Execution Vulnerability
Other sources
Stack-based buffer overflow in Microsoft Office Word 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 16.114.26101123
Event History
Frequently Asked Questions
What does an attacker need in order to exploit this issue?
The attacker can attempt exploitation remotely and does not need prior privileges or authentication. The attack is rated low complexity, but it requires user interaction.
Which Office products are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Word, 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.