CVE-2026-97760: 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 16.0.10417.20228Patch KB5002928 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attacker can be unauthorized and does not need prior privileges. Exploitation requires user interaction, and the attack can be conducted over a network.
What is the likely security impact?
Successful exploitation can disclose information from an affected Excel environment. The provided severity vector indicates no integrity or availability impact.
Which product deployments should be reviewed?
Review Microsoft 365 Apps for Enterprise, Microsoft Office Excel, Office Online Server, Office LTSC 2021 for 32-bit and 64-bit editions, Office LTSC 2024 for 32-bit and 64-bit editions, and Office LTSC for Mac 2024.