CVE-2026-88185: 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 16.0.14334.20974 - 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 16.0.17932.21056
Event History
Frequently Asked Questions
Which Office deployments are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise, Microsoft Office Word, Office LTSC 2021 and 2024 for both 32-bit and 64-bit editions, Office 365 for Mac, and Office LTSC for Mac 2024.
Does exploitation require an authenticated account or user interaction?
The supplied CVSS vector indicates no privileges are required and no user interaction is required. It also rates attack complexity as high.
What could a successful exploit allow?
A successful exploit can allow code execution. The CVSS vector assigns high impacts to confidentiality, integrity, and availability.
Is there evidence of exploit availability in the supplied data?
The CVSS vector lists exploit code maturity as E:U. No additional exploitation evidence is provided.