CVE-2005-4131Excel Vulnerability
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…
Published Dec 9, 2005 · Updated Apr 15, 2026
Key Facts
Routine patching- CVE-2005-4131 is a medium-severity vulnerability (CVSS 6.8 v2) affecting Excel (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 31% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
31%
Higher than 98.2% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisory19138
- advisory19238
- advisoryADV-2006-0950
- patch15780
Description
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.
Affected Products
14 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ExcelMicrosoft | 2000, 2000-sp2, 2000-sp3, 2000-sr1, 2002, 2002-sp1, 2002-sp2, 2002-sp3 | n/a |
Timeline
Publicly disclosed
Dec 9, 2005
Last updated
Apr 15, 2026
References
- advisory19138
- advisory19238
- advisoryADV-2006-0950
- patch15780
- exploitExploitDB-26769
FAQ
Common Questions.
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 n…
Affected: Excel (Microsoft) versions 2000, 2000-sp2, 2000-sp3, 2000-sr1, 2002, 2002-sp1, 2002-sp2, 2002-sp3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2005-4131 On Your Attack Surface?
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