CVE-2026-32189: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code 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 16.108.26041219 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20113Patch KB5002855 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5548.1000Patch KB5002860
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32189?
CVE-2026-32189 is rated as a critical vulnerability, allowing remote code execution in Microsoft Excel.
How do I fix CVE-2026-32189?
You can fix CVE-2026-32189 by applying the latest security updates available for your affected Microsoft Excel version.
Which versions of Excel are affected by CVE-2026-32189?
CVE-2026-32189 affects multiple versions including Microsoft Excel 2016 and various editions of Office LTSC and Office 2019.
What kind of attack does CVE-2026-32189 facilitate?
CVE-2026-32189 facilitates local code execution by attackers through the use after free vulnerability.
Is CVE-2026-32189 a local or remote attack vector?
CVE-2026-32189 is classified as a remote attack vector, allowing unauthorized execution of code on affected systems.