CVE-2026-69734: Microsoft Office Word Information Disclosure Vulnerability
Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
Other sources
Microsoft Office Word Information Disclosure 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 KB5002916 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20906 - Upgrade
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Fixed in 16.0.5569.1003Patch KB5002916 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.20976 - Upgrade
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Fixed in 16.0.20326.20138 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20207
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker does not need prior privileges, but exploitation requires user interaction. The vulnerability is reachable over a network and could disclose information if successfully exploited.
What is the potential impact on affected systems?
Successful exploitation could allow disclosure of information. The supplied severity vector indicates no integrity or availability impact.
Which Microsoft Office deployments are identified as affected?
The listed software includes Office 2016, Word 2016, Microsoft 365 Apps for Enterprise, Office LTSC 2021 for 32-bit editions, Office LTSC 2024 for 32-bit and 64-bit editions, and Office LTSC for Mac 2021 and 2024.