Integer overflow in the Install Engine (inseng.dll) for Internet Explorer 5.01, 5.5, and 6 allows remote attackers to execute arbitrary code via a malicious website or HTML email with a long .CAB file name, which triggers the integer overflow when calculating a buffer length and leads to a heap-based buffer overflow.
Conclusion & alert: CVE-2004-0216 is rated High Risk (79.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 54.87%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.39% 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 | 2025-09-10 | 48.49% | 54.87% | +6.39% |
| 2 | 2025-03-30 | 70.60% | 48.49% | -22.12% |
| 3 | 2025-03-29 | — | 70.60% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | ie | 6 | cpe:2.3:a:microsoft:ie:6:windows_server_2003_sp1:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.01 | cpe:2.3:a:microsoft:internet_explorer:5.01:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 5.5 | cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* |