Buffer overflow in ntdll.dll on Microsoft Windows NT 4.0, Windows NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP allows remote attackers to execute arbitrary code, as demonstrated via a WebDAV request to IIS 5.0.
Conclusion & alert: CVE-2003-0109 is rated High Exploit Risk (81.5/100): CVSS High severity, with high exploitation likelihood (EPSS 88.72%, 99th percentile). Core evidence: 10 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.67% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| 16470 | exploit_db | edb | 2010-07-25 | Exploit-DB ↗ |
| 51 | exploit_db | edb | 2003-07-08 | Exploit-DB ↗ |
| 36 | exploit_db | edb | 2003-06-01 | Exploit-DB ↗ |
| 22367 | exploit_db | edb | 2003-04-04 | Exploit-DB ↗ |
| 22366 | exploit_db | edb | 2003-03-31 | Exploit-DB ↗ |
| 2 | exploit_db | edb | 2003-03-24 | Exploit-DB ↗ |
| 22365 | exploit_db | edb | 2003-03-24 | Exploit-DB ↗ |
| 1 | exploit_db | edb | 2003-03-23 | Exploit-DB ↗ |
| 22368 | exploit_db | edb | 2003-03-17 | 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 | 2026-01-29 | 87.04% | 88.72% | +1.67% |
| 2 | 2025-11-06 | 88.72% | 87.04% | -1.67% |
| 3 | 2025-07-11 | — | 88.72% | — |
Full EPSS history (10 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 | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* |
| microsoft | windows_2000 | — | cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:* |
| microsoft | windows_2000_terminal_services | — | cpe:2.3:o:microsoft:windows_2000_terminal_services:*:*:*:*:*:*:*:* |
| microsoft | windows_2000_terminal_services | — | cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp1:*:*:*:*:*:* |
| microsoft | windows_2000_terminal_services | — | cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp2:*:*:*:*:*:* |
| microsoft | windows_2000_terminal_services | — | cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp3:*:*:*:*:*:* |