CVE-2007-0671
Microsoft Office Excel Remote Code Execution Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 2 September 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 42.38% probability · 99th percentile
- CISA KEV
- Listed 12 August 2025 · due 2 September 2025
- Affected
- microsoft/access · microsoft/excel · microsoft/excel viewer · microsoft/frontpage · microsoft/infopath · microsoft/office · microsoft/onenote · microsoft/outlook · microsoft/powerpoint · microsoft/project · microsoft/publisher · microsoft/visio · microsoft/word · microsoft/word viewer
- Source
- secure@microsoft.com
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://learn.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015 ; https://nvd.nist.gov/vuln/detail/CVE-2007-0671
References
- http://osvdb.org/31901Broken Link
- http://secunia.com/advisories/24008Broken Link, Vendor Advisory
- http://securitytracker.com/id?1017584Broken Link
- http://vil.nai.com/vil/content/v_141393.htmBroken Link
- http://www.avertlabs.com/research/blog/?p=191Broken Link
- http://www.kb.cert.org/vuls/id/613740US Government Resource
- http://www.microsoft.com/technet/security/advisory/932553.mspxBroken Link, Vendor Advisory
- http://www.securityfocus.com/bid/22383Broken Link
- http://www.us-cert.gov/cas/techalerts/TA07-044A.htmlBroken Link, US Government Resource
- http://www.vupen.com/english/advisories/2007/0463Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32178Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A301Broken Link
- http://osvdb.org/31901Broken Link
- http://secunia.com/advisories/24008Broken Link, Vendor Advisory
- http://securitytracker.com/id?1017584Broken Link
- http://vil.nai.com/vil/content/v_141393.htmBroken Link
- http://www.avertlabs.com/research/blog/?p=191Broken Link
- http://www.kb.cert.org/vuls/id/613740US Government Resource
- http://www.microsoft.com/technet/security/advisory/932553.mspxBroken Link, Vendor Advisory
- http://www.securityfocus.com/bid/22383Broken Link
- http://www.us-cert.gov/cas/techalerts/TA07-044A.htmlBroken Link, US Government Resource
- http://www.vupen.com/english/advisories/2007/0463Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32178Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A301Broken Link
- https://learn.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-015Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2007-0671US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.