Heap-based buffer overflow in HistorySvr.exe in WellinTech KingView 6.53 allows remote attackers to execute arbitrary code via a long request to TCP port 777.
Conclusion & alert: CVE-2011-0406 is rated High Exploit Risk (85.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 55.74%, 98th percentile). Core evidence: 3 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 |
|---|---|---|---|---|
| 15957 | exploit_db | edb | 2011-01-09 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | 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 | 2026-02-04 | 59.81% | 55.74% | -4.07% |
| 2 | 2025-09-20 | 62.01% | 59.81% | -2.20% |
| 3 | 2025-04-30 | — | 62.01% | — |
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 |
|---|---|---|---|
| wellintech | kingview | 6.53 | cpe:2.3:a:wellintech:kingview:6.53:*:*:*:*:*:*:* |