CVE-2026-81390: Microsoft Excel Information Disclosure Vulnerability
Microsoft Excel Information Disclosure Vulnerability
Other sources
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
— 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 16.0.5569.1003Patch KB5002914 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5569.1003Patch KB5002904 - 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 16.0.10417.20207 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20138 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20207Patch KB5002910
Event History
Frequently Asked Questions
What access and user involvement does exploitation require?
The CVSS vector indicates local access is required, no privileges are required, and user interaction is required. The available data does not indicate remote exploitation.
Which Microsoft Office products should be reviewed for exposure?
The listed products are Microsoft Excel 2016, Microsoft Office 2016, Microsoft 365 Apps for Enterprise, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 32-bit and 64-bit editions, and Microsoft Office LTSC for Mac 2024.