CVE-2026-80090: 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 16.0.5569.1000Patch KB5002923 - 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 16.0.14334.20896 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20136 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20204
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker must persuade a user to interact with malicious content. The vulnerability is remotely exploitable, requires no attacker privileges, and has low attack complexity.
What is the expected impact if exploitation succeeds?
Successful exploitation can disclose information from the affected Word application or system. The supplied metrics indicate high confidentiality impact, with no stated integrity or availability impact.
Which Word deployments are identified as affected?
The listed affected products include Word 2016, Microsoft 365 Apps for Enterprise, Office 365 for Mac, Office LTSC 2021 for 32-bit editions and Mac, and Office LTSC 2024 for 32-bit and 64-bit editions and Mac.