CVE-2026-80085: 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 16.0.17932.20960 - 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 16.0.20326.20136 - Upgrade
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Fixed in 16.0.14334.20896 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20204
Event History
Frequently Asked Questions
Which Word deployments are identified as affected?
The listed affected products are Word 2016, Microsoft 365 Apps for Enterprise, Office 365 for Mac, Office LTSC 2024 for 32-bit and 64-bit editions, Office LTSC for Mac 2024, Office LTSC 2021 for 32-bit editions, and Office LTSC for Mac 2021.
Does an attacker need credentials or user interaction?
The CVSS vector indicates no attacker privileges are required, but user interaction is required. Exploitation is rated network-accessible with low attack complexity.
What is the expected impact if exploitation succeeds?
The CVSS metrics rate confidentiality, integrity, and availability impact as high. Successful exploitation should therefore be treated as capable of materially compromising the affected Word environment.