Microsoft Office Excel Remote Code Execution Vulnerability
Description
Microsoft Office Excel contains a remote code execution vulnerability that can be exploited when a specially crafted Excel file is opened. This malicious file could be delivered as an email attachment or hosted on a malicious website. An attacker could leverage this vulnerability by creating a specially crafted Excel file, which, when opened, allowing an attacker to execute remote code on the affected system.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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Details
- Vendor
- Microsoft
- Product
- Microsoft Office
- CVE
- CVE-2007-0671
- Affected versions
- Office 2000 2000: Office 2000 SP3 (Excel, Access, Word, Outlook, PowerPoint, FrontPage, Publisher 2000, Project 2000 SR1)
Office XP (2002) 2002: Office XP SP3 (Excel, Access, Word, Outlook, PowerPoint, FrontPage, Publisher 2002, Project 2002 SP1, Visio 2002 SP2)
Office 2003 2003: Office 2003 SP2 (Excel, Access, Word, Outlook, PowerPoint, FrontPage, Publisher, InfoPath, OneNote, Project, Visio 2003, Excel Viewer 2003, Word Viewer 2003)
Office 2004 for Mac 2004: Office 2004 for Mac (Excel 2004) (from the advisory and NVD; check the exact builds in the official advisory) - CVSS score
- 8.8
- Actively exploited
- Yes, listed in the CISA Known Exploited Vulnerabilities catalog
- CISA due date
- September 2, 2025 (deadline for US federal agencies: a good benchmark for you too)
- Source
- CISA KEV – original advisory
- Published
- August 12, 2025
The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.