CVE-2025-30376: Microsoft Excel Remote Code Execution Vulnerability
First published: Tue May 13 2025(Updated: )
<p>Heap-based buffer overflow 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 365 Apps for enterprise | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Excel | ||
| Microsoft Excel | ||
| Microsoft Office LTSC 2021 | ||
| Microsoft Office LTSC 2021 | ||
| Microsoft Office LTSC 2024 | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Office Online Server | ||
| Microsoft 365 Apps for enterprise | ||
| Microsoft Office Long Term Servicing Channel for Mac | ||
| Microsoft Office Long Term Servicing Channel for Mac | ||
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-30376?
The severity of CVE-2025-30376 is critical, as it allows remote code execution through a heap-based buffer overflow in Microsoft Excel.
How do I fix CVE-2025-30376?
To fix CVE-2025-30376, ensure that you apply the latest security updates provided by Microsoft for the affected versions of Excel.
Which versions of Microsoft Excel are affected by CVE-2025-30376?
CVE-2025-30376 affects various versions of Microsoft Excel including Office LTSC 2021, Office LTSC 2024, and Excel 2016.
Can CVE-2025-30376 be exploited remotely?
Yes, CVE-2025-30376 can be exploited remotely by an unauthorized attacker to execute code on a vulnerable system.
What type of vulnerability is CVE-2025-30376 classified as?
CVE-2025-30376 is classified as a heap-based buffer overflow vulnerability leading to remote code execution.
- collector/mitre-cve
- source/MITRE
- collector/msrc-cve
- source/Microsoft
- collector/msrc
- agent/references
- agent/title
- agent/type
- agent/first-publish-date
- agent/software-canonical-lookup
- agent/softwarecombine
- agent/author
- agent/source
- agent/severity
- agent/weakness
- agent/description
- agent/event
- agent/tags
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- vendor/microsoft
- canonical/microsoft office ltsc 2024
- canonical/microsoft 365 apps for enterprise
- canonical/microsoft office 2019 for mac
- canonical/microsoft excel
- canonical/microsoft office ltsc 2021
- canonical/microsoft office online server
- canonical/microsoft office long term servicing channel for mac