CVE DATABASE / CVE-2007-0671
CVE-2007-0671
Microsoft Office Excel Remote Code Execution Vulnerability
Confirmed exploited in the wild. Added 2025-08-12.
Federal remediation due 2025-09-02.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Summary
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.
CVSS 3.1 breakdown
| Base score | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- http://osvdb.org/31901
- http://secunia.com/advisories/24008
- http://securitytracker.com/id?1017584
- http://vil.nai.com/vil/content/v_141393.htm
- http://www.avertlabs.com/research/blog/?p=191
- http://www.kb.cert.org/vuls/id/613740
- http://www.microsoft.com/technet/security/advisory/932553.mspx
- http://www.securityfocus.com/bid/22383
- http://www.us-cert.gov/cas/techalerts/TA07-044A.html
- http://www.vupen.com/english/advisories/2007/0463
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32178
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A301
- https://learn.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2007-0671
Data: NIST NVD + CISA KEV. NVD last modified 2026-04-22. Always verify against the vendor advisory before acting.