Heap-based buffer overflow in Microsoft Office Excel 2007 SP1 and SP2 and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a crafted spreadsheet in which "a MDXSET record is broken up into several records," aka "Microsoft Office Excel MDXSET Record Heap Overflow Vulnerability."
Conclusion & alert: CVE-2010-0261 is rated High Risk (66.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 65.47%, 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 | 2025-03-30 | 76.31% | 65.47% | -10.84% |
| 2 | 2025-03-29 | 65.47% | 76.31% | +10.84% |
| 3 | 2025-03-19 | — | 65.47% | — |
Full EPSS history (23 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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | excel | 2002 | cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:* |
| microsoft | excel | 2003 | cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:* |
| microsoft | excel | 2007 | cpe:2.3:a:microsoft:excel:2007:sp1:*:*:*:*:*:* |
| microsoft | excel | 2007 | cpe:2.3:a:microsoft:excel:2007:sp2:*:*:*:*:*:* |
| 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 | 2007 | cpe:2.3:a:microsoft:office_compatibility_pack:2007:sp1:*:*:*:*:*:* |
| microsoft | office_compatibility_pack | 2007 | cpe:2.3:a:microsoft:office_compatibility_pack:2007:sp2:*:*:*:*:*:* |
| microsoft | office_excel_viewer | — | cpe:2.3:a:microsoft:office_excel_viewer:*:sp1:*:*:*:*:*:* |
| microsoft | office_excel_viewer | — | cpe:2.3:a:microsoft:office_excel_viewer:*:sp2:*:*:*:*:*:* |
| microsoft | office_sharepoint_server | 2007 | cpe:2.3:a:microsoft:office_sharepoint_server:2007:sp1:x32:*:*:*:*:* |
| microsoft | office_sharepoint_server | 2007 | cpe:2.3:a:microsoft:office_sharepoint_server:2007:sp1:x64:*:*:*:*:* |
| microsoft | office_sharepoint_server | 2007 | cpe:2.3:a:microsoft:office_sharepoint_server:2007:sp2:x32:*:*:*:*:* |
| microsoft | office_sharepoint_server | 2007 | cpe:2.3:a:microsoft:office_sharepoint_server:2007:sp2:x64:*:*:*:*:* |
| microsoft | open_xml_file_format_converter | — | cpe:2.3:a:microsoft:open_xml_file_format_converter:*:*:mac:*:*:*:*:* |