CVE-2026-70302: 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 16.0.17932.21056
Event History
Frequently Asked Questions
Does exploitation require an authenticated attacker or user interaction?
The attacker is described as unauthorized, and the vector indicates no privileges are required. User interaction is required, although the available data does not specify what form that interaction takes.
Which deployment types are identified as affected?
The affected software list includes Microsoft 365 Apps for Enterprise; Office 365 for Mac; Office LTSC 2021 and 2024 for Mac; and 32-bit and 64-bit editions of Office LTSC 2021 and 2024.
What is the potential impact of a successful exploit?
A successful exploit can result in code execution. The supplied severity vector rates confidentiality, integrity, and availability impact as high.