Integer overflow in Microsoft Office PowerPoint 2002 SP3 and 2003 SP3 allows remote attackers to execute arbitrary code via a PowerPoint file containing a crafted record type for "collaboration information for different slides" that contains a field that specifies a large number of records, which triggers an under-allocated buffer and a heap-based buffer overflow, aka "Integer Overflow Vulnerability."
Conclusion & alert: CVE-2009-0221 is rated High Risk (70.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 67.68%, 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 | 2025-11-28 | 68.41% | 67.68% | -0.73% |
| 2 | 2025-03-30 | 72.97% | 68.41% | -4.56% |
| 3 | 2025-03-29 | — | 72.97% | — |
Full EPSS history (25 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 | office_powerpoint | 2002 | cpe:2.3:a:microsoft:office_powerpoint:2002:sp3:*:*:*:*:*:* |
| microsoft | office_powerpoint | 2003 | cpe:2.3:a:microsoft:office_powerpoint:2003:sp3:*:*:*:*:*:* |