CVE-2026-32188: 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 https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.108.26041219 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5548.1000Patch KB5002860 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20113Patch KB5002855
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32188?
CVE-2026-32188 is rated with a critical severity level due to its potential to allow unauthorized information disclosure.
How do I fix CVE-2026-32188?
To fix CVE-2026-32188, apply the latest security updates provided by Microsoft for the affected Excel versions.
What are the affected versions for CVE-2026-32188?
CVE-2026-32188 affects various versions of Microsoft Excel, including Excel 2016, Office LTSC 2021, and Office 2019.
What type of vulnerability is CVE-2026-32188?
CVE-2026-32188 is an information disclosure vulnerability that results from an out-of-bounds read condition.
Who can be targeted by CVE-2026-32188?
CVE-2026-32188 can potentially be exploited by attackers to disclose sensitive information from users' systems.