CVE-2026-108434: Microsoft Office Word Information Disclosure Vulnerability
Microsoft Office Word Information Disclosure Vulnerability
Other sources
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
— 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 16.0.17932.21056 - 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 16.114.26101123
Event History
Frequently Asked Questions
Does exploitation require authentication or user interaction?
The attacker does not need privileges or authentication, but user interaction is required. The attack vector is network-based and has low attack complexity.
Which Office deployments should be assessed for exposure?
Assess Microsoft 365 Apps for Enterprise; Office LTSC 2024 for 32-bit, 64-bit, and Mac editions; Office LTSC 2021 for 32-bit, 64-bit, and Mac editions; and Office 365 for Mac.