CVE-2007-0671 Microsoft Office Excel Remote Code Execution
Remote attackers can execute arbitrary code via malicious Excel files, requiring user interaction to open the document.
- Exploited in the wild
- Since 12 Aug 2025
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2007-0671?
CVE-2007-0671 is a high-severity code injection vulnerability in Microsoft Excel, published on 3 Feb 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Unspecified vulnerability in Microsoft Excel 2000, XP, 2003, and 2004 for Mac, and possibly other Office products, allows remote user-assisted attackers to execute arbitrary code via unknown attack vectors, as demonstrated by Exploit-MSExcel.h in targeted zero-day attacks.
Which versions are affected by CVE-2007-0671?
It affects 14 products.
Products include Microsoft Access, Microsoft Excel, Microsoft Excel Viewer, Microsoft Frontpage, Microsoft Infopath, Microsoft Office and 8 more.
How do I fix CVE-2007-0671?
No fix has been published for CVE-2007-0671 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 2 Sep 2025.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2007-0671 being exploited?
Yes. Attackers have exploited CVE-2007-0671 in the wild since at least 12 Aug 2025.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-h24h-phxr-rg3x.