The Microsoft Active Movie ActiveX Control in Internet Explorer 5 does not restrict which file types can be downloaded, which allows an attacker to download any type of file to a user's system by encoding it within an email message or news post.
Conclusion & alert: CVE-2000-0400 is rated High Exploit Risk (76.3/100): CVSS High severity, with high exploitation likelihood (EPSS 16.35%, 95th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 19928 | exploit_db | edb | 2000-05-13 | Exploit-DB ↗ |
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 | 2025-10-08 | 18.18% | 16.35% | -1.84% |
| 2 | 2025-03-30 | 23.59% | 18.18% | -5.41% |
| 3 | 2025-03-29 | — | 23.59% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | internet_explorer | 5 | cpe:2.3:a:microsoft:internet_explorer:5:*:*:*:*:*:*:* |