Stack-based buffer overflow in CoCSoft Stream Down 6.8.0 allows remote web servers to execute arbitrary code via a long response to a download request.
Conclusion & alert: CVE-2011-5052 is rated High Exploit Risk (71.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 30.07%, 98th 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 |
|---|---|---|---|---|
| 18283 | exploit_db | edb | 2011-12-27 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | 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 | 51.90% | 30.07% | -21.83% |
| 2 | 2026-02-13 | 52.63% | 51.90% | -0.73% |
| 3 | 2025-06-03 | — | 52.63% | — |
Full EPSS history (17 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cocsoft | stream_down | 6.8 | cpe:2.3:a:cocsoft:stream_down:6.8:*:*:*:*:*:*:* |