CVE-2026-72973: 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 16.0.5569.1000Patch KB5002923 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.20976 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20906 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20207 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20138
Event History
Frequently Asked Questions
What must an attacker do to exploit this vulnerability?
The attacker can attempt exploitation over a network without authentication or prior privileges, but user interaction is required. The available data does not specify the exact user action or delivery method.
Which Office installations are identified as affected?
The affected software list includes Microsoft Word 2016; Microsoft 365 Apps for Enterprise; Microsoft Office 365 for Mac; Office LTSC for Mac 2024; Office LTSC 2024 for 32-bit and 64-bit editions; Office 2019 for 64-bit editions; and Office LTSC 2021 for 64-bit editions.
What is the potential impact if exploitation succeeds?
Successful exploitation can allow code execution. The severity vector indicates high impacts to confidentiality, integrity, and availability.