CVE-2007-0671
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.
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Partly. The bug can be reached over the network, so generic WAF rules may stop some attacks. Its weakness type is unknown, so we cannot be more precise.
Also consider: patch
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2007-0671 being exploited?
Yes. CVE-2007-0671 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2007-0671?
CVE-2007-0671 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2007-0671?
Yes. A fix has been recorded for CVE-2007-0671. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2007-0671 affect?
CVE-2007-0671 affects microsoft:access, microsoft:excel, microsoft:excel_viewer, microsoft:frontpage, and 10 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 12 Aug 2025 (SSVC 2.0.3).
timeline
- 3 Feb 2007Published
- 12 Aug 2025Added to CISA KEV (exploited in the wild) · 6,765 days (about 19 years) later
- 12 Aug 2025CISA SSVC assessment: exploitation active · same day later
- 2 Sept 2025CISA remediation due date (US federal agencies) · 21 days later
- 12 Jan 2026CVE record last updated · 133 days (about 4 months) later
- 2 Nov 2026Analysed by vulneraibility.com · 294 days (about 10 months) later
- Advisorykb.cert.org /vuls/id/613740
- Advisorysecunia.com /advisories/24008
- Advisoryus-cert.gov /cas/techalerts/TA07-044A.html
- Advisorydocs.microsoft.com /en-us/security-updates/securitybulletins/2007/ms07-015
- Linkvupen.com /english/advisories/2007/0463
- Linkoval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A301
- Linkosvdb.org /31901
- Linkmicrosoft.com /technet/security/advisory/932553.mspx
Show 7 more
- Linksecuritytracker.com /id?1017584
- Linkavertlabs.com /research/blog/?p=191
- Linkexchange.xforce.ibmcloud.com /vulnerabilities/32178
- Linkvil.nai.com /vil/content/v_141393.htm
- Linksecurityfocus.com /bid/22383
- Linklearn.microsoft.com /en-us/security-updates/securitybulletins/2007/ms07-015
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2007-0671
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.