Microsoft · Office
CVE-2007-0671
Microsoft Office Excel Remote Code Execution Vulnerability
What it is
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.
CISA: 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.
Deadline for US federal agencies: September 2, 2025
- Added to the CISA list
- August 12, 2025
- Published
- February 3, 2007
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 43% in the top 1.3% of all known vulnerabilities
- More details
- NVD · CVE.org · CISA
All references (13)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015
- http://www.vupen.com/english/advisories/2007/0463
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A301
- http://osvdb.org/31901
- http://www.microsoft.com/technet/security/advisory/932553.mspx
- http://www.kb.cert.org/vuls/id/613740
- http://securitytracker.com/id?1017584
- http://www.avertlabs.com/research/blog/?p=191
- http://secunia.com/advisories/24008
- http://www.us-cert.gov/cas/techalerts/TA07-044A.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32178
- http://vil.nai.com/vil/content/v_141393.htm
- http://www.securityfocus.com/bid/22383
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Apr 14, 2026 | Remote Code Execution | Office | High 8.8 | 43% |
| Feb 10, 2026 | Word Reliance on Untrusted Inputs in a Security Decision | Office | High 7.8 | 1.6% |
| Jan 26, 2026 | Security Feature Bypass | Office | High 7.8 | 71% |
| Jan 7, 2026 | PowerPoint Code Injection | Office | High 8.8 | 67% |
| Mar 14, 2023 | Outlook Privilege Escalation | Office | Critical 9.8 | 97% |
| Feb 14, 2023 | Publisher Security Feature Bypass | Office | High 7.3 | 12% |
| Jun 8, 2022 | Object Record Corruption | Office | High 7.8 | 53% |
| Jun 8, 2022 | Buffer Overflow | Office | High 7.8 | 60% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.