CVE-2025-30383: Microsoft Excel Remote Code Execution Vulnerability
First published: Tue May 13 2025(Updated: )
<p>Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Office LTSC 2024 | ||
| Microsoft Excel | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Office LTSC 2021 | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Office LTSC 2021 | ||
| Microsoft 365 Apps for enterprise | ||
| Microsoft Excel | ||
| Microsoft 365 Apps for enterprise | ||
| Microsoft Office Online Server | ||
| Microsoft Office LTSC 2024 | ||
| Microsoft Office Long Term Servicing Channel for Mac | ||
| Microsoft Office Long Term Servicing Channel for Mac | ||
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-30383?
CVE-2025-30383 is considered a critical vulnerability due to its potential to allow unauthorized code execution.
How do I fix CVE-2025-30383?
To fix CVE-2025-30383, ensure that you apply the latest security updates provided by Microsoft for the affected software.
Which versions of Microsoft Excel are affected by CVE-2025-30383?
CVE-2025-30383 affects various versions of Microsoft Excel, including Excel 2016, Office 2019, and Office LTSC 2021 and 2024.
What type of attack can CVE-2025-30383 enable?
CVE-2025-30383 can enable an attacker to execute arbitrary code locally by exploiting a type confusion vulnerability.
Are all Office editions impacted by CVE-2025-30383?
No, only specific editions of Microsoft Office, such as Office LTSC and certain versions of Excel, are impacted by CVE-2025-30383.
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