CVE-2005-4131

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 31%CVSS: —Exploit: 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, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via an Excel file with a malformed range, which could lead to memory corruption involving an argument to the msvcrt.memmove function, aka "Brand new Microsoft Excel Vulnerability," as originally placed for sale on eBay as item number 7203336538.

CVSS v3
—
EG Score
0.0(none)
EPSS
98.1%
KEV
Not listed

Published

December 9, 2005

Last Modified

April 16, 2026

References (50)

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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.

  1. 2026-07-13 06:07 UTCEPSS rescore
  2. 2026-07-13 06:07 UTCEPSS rescore
  3. 2026-07-11 08:22 UTCEPSS rescore
  4. 2026-07-11 08:22 UTCEPSS rescore
  5. 2026-07-08 15:09 UTCEPSS rescore
  6. 2026-07-02 14:00 UTCEPSS rescore
  7. 2026-07-01 15:01 UTCEPSS rescore
  8. 2026-06-28 04:52 UTCEPSS rescore
  9. 2026-06-27 03:04 UTCEPSS rescore
  10. 2026-06-25 13:46 UTCEPSS rescore
  11. 2026-06-24 14:01 UTCEPSS rescore
  12. 2026-06-23 21:29 UTCEPSS rescore
  13. 2026-06-22 14:22 UTCEPSS rescore
  14. 2026-06-22 14:22 UTCEPSS rescore
  15. 2026-06-21 01:56 UTCEPSS rescore
  16. 2026-06-18 17:49 UTCEPSS rescore
  17. 2026-06-18 17:49 UTCEPSS rescore
  18. 2026-06-17 17:49 UTCEPSS rescore
  19. 2026-06-17 17:49 UTCEPSS rescore
  20. 2026-06-16 17:49 UTCEPSS rescore
  21. 2026-06-16 17:49 UTCEPSS rescore
  22. 2026-06-15 17:44 UTCEPSS rescore
  23. 2026-06-14 23:13 UTCEPSS rescore
  24. 2026-06-14 23:13 UTCEPSS rescore
  25. 2026-06-13 22:56 UTCEPSS rescore
Show 24 more
  1. 2026-06-12 23:08 UTCEPSS rescore
  2. 2026-06-11 13:55 UTCEPSS rescore
  3. 2026-06-10 22:14 UTCEPSS rescore
  4. 2026-06-08 14:13 UTCEPSS rescore
  5. 2026-06-05 06:07 UTCEPSS rescore
  6. 2026-06-05 06:07 UTCEPSS rescore
  7. 2026-06-02 20:10 UTCEPSS rescore
  8. 2026-06-02 20:10 UTCEPSS rescore
  9. 2026-06-01 13:49 UTCEPSS rescore
  10. 2026-06-01 13:49 UTCEPSS rescore
  11. 2026-05-31 11:14 UTCEG score recompute
  12. 2026-05-31 11:14 UTCGHSA enrichment
  13. 2026-05-31 00:13 UTCEPSS rescore
  14. 2026-05-31 00:13 UTCEPSS rescore
  15. 2026-05-29 13:40 UTCEPSS rescore
  16. 2026-05-29 13:40 UTCEPSS rescore
  17. 2026-05-27 13:37 UTCEPSS rescore
  18. 2026-05-26 07:16 UTCEPSS rescore
  19. 2026-05-26 07:16 UTCEPSS rescore
  20. 2026-05-22 21:15 UTCEPSS rescore
  21. 2026-05-21 22:38 UTCEPSS rescore
  22. 2026-05-20 22:36 UTCEPSS rescore
  23. 2026-05-20 22:36 UTCEPSS rescore
  24. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-26769✓ verified
    First seen Dec 8, 2005

    Microsoft Excel 95/97/2000/2002/2003/2004 - Malformed Range Memory Corruption

    Open source ↗

Frequently asked(4)

What is CVE-2005-4131?
CVE-2005-4131 is a none vulnerability published on December 9, 2005. Unspecified vulnerability in Microsoft Excel 2000, 2002, and 2003, in Microsoft Office 2000 SP3 and other packages, allows user-assisted attackers to execute arbitrary code via an Excel file with a malformed range, which could lead to memory corruption involving an argument to the msvcrt.memmove…
When was CVE-2005-4131 disclosed?
CVE-2005-4131 was first published in the National Vulnerability Database on December 9, 2005, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2005-4131 actively exploited?
CVE-2005-4131 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2005-4131?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-4131, 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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