CVE-2007-0671

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-08-12), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 42%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.8
EG Score
9.0(high)
EPSS
98.5%
KEV
⚠ Exploited

Published

February 3, 2007

Last Modified

April 22, 2026

Advisory Details (4)

Auto-updated May 2, 2026
No patch confirmed yet. Sources: cert.
generic

VUPEN Security - Vulnerability Research and Intelligence

http://www.vupen.com/english/advisories/2007/0463
generic
http://www.securityfocus.com/bid/22383
cert

VU#613740 - Microsoft Excel memory access vulnerability

http://www.kb.cert.org/vuls/id/613740
generic

About Secunia Research | Flexera

http://secunia.com/advisories/24008

Data Freshness Timeline

(refreshed 96× in last 7d / 409× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 645 total refreshes for this CVE.

  1. 2026-07-14 04:05 UTCEG score recompute
  2. 2026-07-14 04:05 UTCGHSA enrichment
  3. 2026-07-14 00:13 UTCEG score recompute
  4. 2026-07-14 00:13 UTCGHSA enrichment
  5. 2026-07-13 22:25 UTCEPSS rescore
  6. 2026-07-13 20:22 UTCEG score recompute
  7. 2026-07-13 20:22 UTCGHSA enrichment
  8. 2026-07-13 17:07 UTCCISA KEV update
  9. 2026-07-13 16:31 UTCEG score recompute
  10. 2026-07-13 16:31 UTCGHSA enrichment
  11. 2026-07-13 12:38 UTCEG score recompute
  12. 2026-07-13 12:38 UTCGHSA enrichment
  13. 2026-07-13 08:46 UTCEG score recompute
  14. 2026-07-13 08:46 UTCGHSA enrichment
  15. 2026-07-13 06:07 UTCEPSS rescore
  16. 2026-07-13 06:07 UTCEPSS rescore
  17. 2026-07-13 04:53 UTCEG score recompute
  18. 2026-07-13 04:53 UTCGHSA enrichment
  19. 2026-07-13 01:02 UTCEG score recompute
  20. 2026-07-13 01:02 UTCGHSA enrichment
  21. 2026-07-12 21:10 UTCEG score recompute
  22. 2026-07-12 21:10 UTCGHSA enrichment
  23. 2026-07-12 17:17 UTCEG score recompute
  24. 2026-07-12 17:17 UTCGHSA enrichment
  25. 2026-07-12 13:26 UTCEG score recompute
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  1. 2026-07-12 13:26 UTCGHSA enrichment
  2. 2026-07-12 09:34 UTCEG score recompute
  3. 2026-07-12 09:34 UTCGHSA enrichment
  4. 2026-07-12 05:42 UTCEG score recompute
  5. 2026-07-12 05:42 UTCGHSA enrichment
  6. 2026-07-12 01:51 UTCEG score recompute
  7. 2026-07-12 01:51 UTCGHSA enrichment
  8. 2026-07-11 22:00 UTCEG score recompute
  9. 2026-07-11 22:00 UTCGHSA enrichment
  10. 2026-07-11 18:09 UTCEG score recompute
  11. 2026-07-11 18:09 UTCGHSA enrichment
  12. 2026-07-11 14:18 UTCEG score recompute
  13. 2026-07-11 14:18 UTCGHSA enrichment
  14. 2026-07-11 10:27 UTCEG score recompute
  15. 2026-07-11 10:27 UTCGHSA enrichment
  16. 2026-07-11 06:36 UTCEG score recompute
  17. 2026-07-11 06:36 UTCGHSA enrichment
  18. 2026-07-11 02:45 UTCEG score recompute
  19. 2026-07-11 02:45 UTCGHSA enrichment
  20. 2026-07-10 22:54 UTCEG score recompute
  21. 2026-07-10 22:54 UTCGHSA enrichment
  22. 2026-07-10 19:01 UTCEG score recompute
  23. 2026-07-10 19:01 UTCGHSA enrichment
  24. 2026-07-10 17:52 UTCCISA KEV update
  25. 2026-07-10 15:08 UTCEG score recompute
  26. 2026-07-10 15:08 UTCGHSA enrichment
  27. 2026-07-10 11:16 UTCEG score recompute
  28. 2026-07-10 11:16 UTCGHSA enrichment
  29. 2026-07-10 07:24 UTCEG score recompute
  30. 2026-07-10 07:24 UTCGHSA enrichment
  31. 2026-07-10 03:33 UTCEG score recompute
  32. 2026-07-10 03:33 UTCGHSA enrichment
  33. 2026-07-09 23:42 UTCEG score recompute
  34. 2026-07-09 23:41 UTCGHSA enrichment
  35. 2026-07-09 19:50 UTCEG score recompute
  36. 2026-07-09 19:50 UTCGHSA enrichment
  37. 2026-07-09 15:59 UTCEG score recompute
  38. 2026-07-09 15:59 UTCGHSA enrichment
  39. 2026-07-09 12:05 UTCEG score recompute
  40. 2026-07-09 12:05 UTCGHSA enrichment
  41. 2026-07-09 08:14 UTCEG score recompute
  42. 2026-07-09 08:14 UTCGHSA enrichment
  43. 2026-07-09 04:23 UTCEG score recompute
  44. 2026-07-09 04:23 UTCGHSA enrichment
  45. 2026-07-09 00:31 UTCEG score recompute
  46. 2026-07-09 00:31 UTCGHSA enrichment
  47. 2026-07-08 20:38 UTCEG score recompute
  48. 2026-07-08 20:38 UTCGHSA enrichment
  49. 2026-07-08 16:46 UTCEG score recompute
  50. 2026-07-08 16:46 UTCGHSA enrichment
  51. 2026-07-08 15:09 UTCEPSS rescore
  52. 2026-07-08 12:55 UTCEG score recompute
  53. 2026-07-08 12:54 UTCGHSA enrichment
  54. 2026-07-08 09:01 UTCEG score recompute
  55. 2026-07-08 09:01 UTCGHSA enrichment
  56. 2026-07-08 05:11 UTCEG score recompute
  57. 2026-07-08 05:10 UTCGHSA enrichment
  58. 2026-07-08 01:17 UTCEG score recompute
  59. 2026-07-08 01:16 UTCGHSA enrichment
  60. 2026-07-07 21:25 UTCEG score recompute
  61. 2026-07-07 21:25 UTCGHSA enrichment
  62. 2026-07-07 19:01 UTCCISA KEV update
  63. 2026-07-07 17:34 UTCEG score recompute
  64. 2026-07-07 17:34 UTCGHSA enrichment
  65. 2026-07-07 17:16 UTCCISA KEV update
  66. 2026-07-07 13:38 UTCEG score recompute
  67. 2026-07-07 13:38 UTCGHSA enrichment
  68. 2026-07-07 09:46 UTCEG score recompute
  69. 2026-07-07 09:46 UTCGHSA enrichment
  70. 2026-07-07 05:55 UTCEG score recompute
  71. 2026-07-07 05:55 UTCGHSA enrichment
  72. 2026-07-07 02:03 UTCEG score recompute
  73. 2026-07-07 02:02 UTCGHSA enrichment
  74. 2026-07-06 22:09 UTCEG score recompute
  75. 2026-07-06 22:09 UTCGHSA enrichment

Frequently asked(6)

What is CVE-2007-0671?
CVE-2007-0671 is a high vulnerability published on February 3, 2007. 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.
When was CVE-2007-0671 disclosed?
CVE-2007-0671 was first published in the National Vulnerability Database on February 3, 2007, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-0671 actively exploited?
Yes. CISA added CVE-2007-0671 to the Known Exploited Vulnerabilities catalog on August 12, 2025, affecting Microsoft Office. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2007-0671?
CVE-2007-0671 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2007-0671?
CVE-2007-0671 affects Microsoft Office. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2007-0671?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-0671, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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