CVE-2026-108437: 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 does an attacker need to exploit this vulnerability?
The attack vector is network-based, requires no privileges, and has low attack complexity. User interaction is required, so exploitation depends on a user interacting with attacker-supplied content.
Which deployments are identified as affected?
The affected software list includes Microsoft 365 Apps for Enterprise and Microsoft Office LTSC 2021 and 2024, for both 32-bit and 64-bit editions where listed.
What is the potential impact if exploitation succeeds?
Successful exploitation can allow unauthorized remote code execution. The supplied severity metrics indicate high impact to confidentiality, integrity, and availability.