CVE-2026-70268: 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 16.0.17932.21056 - 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 16.0.14334.20974
Event History
Frequently Asked Questions
Which Office deployments are in scope?
The affected software list includes Microsoft 365 Apps for Enterprise, Office LTSC 2021 and 2024 for 32-bit and 64-bit editions, and Office for Mac/Microsoft Office LTSC for Mac 2021 and 2024. Both Windows and Mac Office environments should be included in triage.
Does exploitation require an authenticated attacker or user interaction?
The vulnerability is rated PR:N, indicating the attacker does not need privileges. It is rated UI:R, so exploitation requires user interaction.