CVE-2026-81392: 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 KB5002904 - 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 16.0.17932.20960 - 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 16.0.20131.20246 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20204Patch KB5002910
Event History
Frequently Asked Questions
What access and user interaction are required for exploitation?
The attack is local, requires no attacker privileges, and requires user interaction. The available data does not specify the exact interaction or delivery method.
What is the potential impact if exploitation succeeds?
Successful exploitation can disclose information. The provided severity vector indicates high confidentiality impact, with no integrity or availability impact.
Which products are listed as affected?
The affected software list includes Microsoft Office 2016, Microsoft Excel 2016, Microsoft 365 Apps for Enterprise, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC 2024 for 32-bit and 64-bit editions, and Microsoft Office LTSC 2021 for 64-bit editions.