CVE-2026-69922: Microsoft Office Excel Information Disclosure Vulnerability
Microsoft Office Excel Information Disclosure Vulnerability
Other sources
Out-of-bounds read in Microsoft Office Excel 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 16.0.17932.20934 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases
Event History
Frequently Asked Questions
Which deployments are listed as affected?
The affected software list includes Microsoft 365 Apps for Enterprise and Microsoft Office LTSC 2021 and LTSC 2024, in both 32-bit and 64-bit editions where listed.
What does an attacker need to exploit this issue?
The CVSS vector indicates network reachability, low attack complexity, no required privileges, and required user interaction. The provided information does not specify the form of that interaction.
What is the expected security impact?
The rating indicates high confidentiality impact, with no integrity or availability impact. Successful exploitation may disclose information to an unauthorized attacker.