Multiple buffer overflows in H-Sphere WebShell 2.3 allow remote attackers to execute arbitrary code via (1) a long URL content type in CGI::readFile, (2) a long path in diskusage, and (3) a long fname in flist.
Conclusion & alert: CVE-2003-1247 is rated High Exploit Risk (73.2/100): CVSS High severity, with high exploitation likelihood (EPSS 9.95%, 95th 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 |
|---|---|---|---|---|
| 22129 | exploit_db | edb | 2003-01-06 | Exploit-DB ↗ |
| 22128 | exploit_db | edb | 2003-01-06 | 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 | 52.93% | 9.95% | -42.98% |
| 2 | 2025-08-24 | 38.36% | 52.93% | +14.57% |
| 3 | 2025-03-30 | — | 38.36% | — |
Full EPSS history (11 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 |
|---|---|---|---|
| positive_software | h-sphere | 2.3_rc3 | cpe:2.3:a:positive_software:h-sphere:2.3_rc3:*:*:*:*:*:*:* |