CVE-2026-64905: Microsoft Office Word Remote Code Execution Vulnerability
Buffer over-read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
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 16.0.5565.1000Patch KB5002901 - 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 16.112.26081010
Event History
Frequently Asked Questions
What is the severity of CVE-2026-64905?
CVE-2026-64905 has a severity rating of 7.8, categorized as high.
What type of vulnerability is CVE-2026-64905?
CVE-2026-64905 is classified as a remote code execution vulnerability in Microsoft Office Word.
Which products are affected by CVE-2026-64905?
CVE-2026-64905 affects Microsoft Word 2016, Microsoft 365 Apps for Enterprise, and various editions of Microsoft Office LTSC for 32-bit and 64-bit, including Mac versions.
How do I fix CVE-2026-64905?
To mitigate CVE-2026-64905, update Microsoft Word to the latest version provided by Microsoft.
What can an attacker do with CVE-2026-64905?
An attacker exploiting CVE-2026-64905 can execute arbitrary code locally on the affected machine.