Microsoft Excel 2007 SP3, 2010 SP1 and SP2, 2013, and 2013 RT; Office 2007 SP3, 2010 SP1 and SP2, 2013, and 2013 RT; Office for Mac 2011; Excel Viewer; Office Compatibility Pack SP3; and Excel Services and Word Automation Services in SharePoint Server 2013 allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Excel Memory Corruption Vulnerability."
Conclusion & alert: CVE-2013-3889 is rated High Risk (76.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 64.99%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.48% over the last day, indicating growing attacker interest. 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 | 2025-12-28 | 59.51% | 64.99% | +5.48% |
| 2 | 2025-12-27 | 64.99% | 59.51% | -5.48% |
| 3 | 2025-12-14 | — | 64.99% | — |
Full EPSS history (20 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 | 2010 | cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:x64:* |
| microsoft | excel | 2010 | cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:x86:*:* |
| microsoft | excel | 2013 | cpe:2.3:a:microsoft:excel:2013:*:*:*:*:*:x64:* |
| microsoft | excel | 2013 | cpe:2.3:a:microsoft:excel:2013:*:*:*:*:x86:*:* |
| microsoft | excel_viewer | — | cpe:2.3:a:microsoft:excel_viewer:*:*:*:*:*:*:*:* |
| microsoft | office | 2007 | cpe:2.3:a:microsoft:office:2007:sp3:*:*:*:*:*:* |
| microsoft | office | 2010 | cpe:2.3:a:microsoft:office:2010:sp1:x64:*:*:*:*:* |
| microsoft | office | 2010 | cpe:2.3:a:microsoft:office:2010:sp1:x86:*:*:*:*:* |
| microsoft | office | 2011 | cpe:2.3:a:microsoft:office:2011:*:mac:*:*:*:*:* |
| microsoft | office | 2013 | cpe:2.3:a:microsoft:office:2013:*:*:*:*:*:*:* |
| microsoft | office_2013_rt | — | cpe:2.3:a:microsoft:office_2013_rt:-:*:*:*:*:*:*:* |
| microsoft | office_compatibility_pack | — | cpe:2.3:a:microsoft:office_compatibility_pack:*:sp3:*:*:*:*:*:* |
| microsoft | office_web_apps | 2010 | cpe:2.3:a:microsoft:office_web_apps:2010:sp1:*:*:*:*:*:* |
| microsoft | office_web_apps | 2010 | cpe:2.3:a:microsoft:office_web_apps:2010:sp2:*:*:*:*:*:* |
| microsoft | sharepoint_server | 2007 | cpe:2.3:a:microsoft:sharepoint_server:2007:sp3:*:*:*:*:*:* |
| microsoft | sharepoint_server | 2013 | cpe:2.3:a:microsoft:sharepoint_server:2013:*:*:*:*:*:*:* |
| microsoft | sharepoint_server | 2010 | cpe:2.3:a:microsoft:sharepoint_server:2010:sp1:*:*:*:*:*:* |
| microsoft | sharepoint_server | 2010 | cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:* |