Microsoft Office Excel 2000 SP3 allows remote attackers to execute arbitrary code via a crafted Excel spreadsheet that contains a malformed object, which triggers memory corruption during the loading of records from this spreadsheet, aka "File Format Parsing Vulnerability."
Conclusion & alert: CVE-2008-4265 is rated High Risk (66.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 24.65%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 62.48% | 24.65% | -37.83% |
| 2 | 2025-06-28 | 66.53% | 62.48% | -4.05% |
| 3 | 2025-05-01 | — | 66.53% | — |
Full EPSS history (24 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
: http://www.microsoft.com/technet/security/Bulletin/MS08-074.mspx File Format Parsing Vulnerability - CVE-2008-4265 A remote code execution vulnerability exists in Microsoft Office Excel as a result of memory corruption when loading Excel records. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file that includes a malformed object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | office_excel | 2000 | cpe:2.3:a:microsoft:office_excel:2000:sp3:*:*:*:*:*:* |
| microsoft | office_excel | 2002 | cpe:2.3:a:microsoft:office_excel:2002:sp3:*:*:*:*:*:* |
| microsoft | office_excel | 2003 | cpe:2.3:a:microsoft:office_excel:2003:sp3:*:*:*:*:*:* |
| microsoft | office | 2004 | cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:* |
| microsoft | office | 2008 | cpe:2.3:a:microsoft:office:2008:*:mac:*:*:*:*:* |
| microsoft | office_compatibility_pack_for_word_excel_ppt_2007 | — | cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:*:*:*:*:*:*:* |
| microsoft | office_compatibility_pack_for_word_excel_ppt_2007 | — | cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:sp1:*:*:*:*:*:* |
| microsoft | office_excel_viewer | — | cpe:2.3:a:microsoft:office_excel_viewer:*:*:*:*:*:*:*:* |
| microsoft | office_excel_viewer | 2003 | cpe:2.3:a:microsoft:office_excel_viewer:2003:*:*:*:*:*:*:* |
| microsoft | office_excel_viewer | 2003 | cpe:2.3:a:microsoft:office_excel_viewer:2003:sp3:*:*:*:*:*:* |
| microsoft | open_xml_file_format_converter | — | cpe:2.3:a:microsoft:open_xml_file_format_converter:*:*:mac:*:*:*:*:* |