The DownloaderActiveX Control (DownloaderActiveX.ocx) in Icona SpA C6 Messenger 1.0.0.1 allows remote attackers to force the download and execution of arbitrary files via a URL in the propDownloadUrl parameter with the propPostDownloadAction parameter set to "run."
Conclusion & alert: CVE-2008-2551 is rated High Exploit Risk (81.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 46.94%, 99th percentile). Core evidence: 2 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 |
|---|---|---|---|---|
| 18449 | exploit_db | edb | 2012-02-02 | Exploit-DB ↗ |
| 5732 | exploit_db | edb | 2008-06-03 | 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 | 2026-06-15 | 85.10% | 46.94% | -38.17% |
| 2 | 2025-03-30 | 86.08% | 85.10% | -0.97% |
| 3 | 2025-03-29 | — | 86.08% | — |
Full EPSS history (22 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 |
|---|---|---|---|
| icona | instant_messenger | 1.0.0.1 | cpe:2.3:a:icona:instant_messenger:1.0.0.1:*:*:*:*:*:*:* |