CVE-2003-0109

NONECVSS 0.09.0▲
EchelonGraph scoreLOW confidence

Score elevated to 9.0 because EPSS predicts 89% probability of exploitation within the next 30 days (top 0.5% of all CVEs). Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss
Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 86%
CISA-KEV: Not listedEPSS: 86%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EG Score
9.0(low)
EPSS
99.7%
KEV
Not listed

Published

March 31, 2003

Last Modified

June 16, 2026

References (32)

Data Freshness Timeline

(refreshed 1× in last 7d / 11× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:07 UTCEPSS rescore
  2. 2026-06-29 14:02 UTCEPSS rescore
  3. 2026-06-29 14:02 UTCEPSS rescore
  4. 2026-06-28 04:52 UTCEPSS rescore
  5. 2026-06-23 21:29 UTCEPSS rescore
  6. 2026-06-21 01:56 UTCEPSS rescore
  7. 2026-06-17 17:49 UTCEPSS rescore
  8. 2026-06-17 17:49 UTCEPSS rescore
  9. 2026-06-16 17:49 UTCEPSS rescore
  10. 2026-06-16 17:49 UTCEPSS rescore
  11. 2026-06-15 17:43 UTCEPSS rescore
  12. 2026-06-13 22:56 UTCEPSS rescore
  13. 2026-06-10 22:13 UTCEPSS rescore
  14. 2026-06-10 13:17 UTCEPSS rescore
  15. 2026-06-06 13:44 UTCEPSS rescore
  16. 2026-06-06 13:44 UTCEPSS rescore
  17. 2026-06-06 13:44 UTCEPSS rescore
  18. 2026-06-05 22:43 UTCEPSS rescore
  19. 2026-06-05 22:43 UTCEPSS rescore
  20. 2026-06-01 13:49 UTCEPSS rescore
  21. 2026-06-01 13:49 UTCEPSS rescore
  22. 2026-05-31 17:47 UTCEG score recompute
  23. 2026-05-31 17:47 UTCGHSA enrichment
  24. 2026-05-27 13:37 UTCEPSS rescore
  25. 2026-05-24 16:42 UTCEPSS rescore
Show 6 more
  1. 2026-05-22 21:15 UTCEPSS rescore
  2. 2026-05-20 22:36 UTCEPSS rescore
  3. 2026-05-20 11:20 UTCEPSS rescore
  4. 2026-05-20 11:20 UTCEPSS rescore
  5. 2026-05-18 21:29 UTCEPSS rescore
  6. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (9 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16470✓ verified
    First seen Jul 25, 2010

    Microsoft IIS 5.0 - WebDAV 'ntdll.dll' Path Overflow (MS03-007) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-51✓ verified
    First seen Jul 8, 2003

    Microsoft IIS 5.0 - WebDAV Remote Code Execution (3) (xwdav)

    Open source ↗
  • Exploit-DBEDB-36✓ verified
    First seen Jun 1, 2003

    Microsoft Windows - WebDAV Remote Code Execution (2)

    Open source ↗
  • Metasploitexploit/windows/iis/ms03_007_ntdll_webdav✓ verified
    First seen May 30, 2003

    MS03-007 Microsoft IIS 5.0 WebDAV ntdll.dll Path Overflow

    Open source ↗
  • Exploit-DBEDB-22367✓ verified
    First seen Apr 4, 2003

    Microsoft IIS 5.0 (Windows XP/2000/NT 4.0) - WebDAV 'ntdll.dll' Remote Buffer Overflow (3)

    Open source ↗
  • Exploit-DBEDB-22366✓ verified
    First seen Mar 31, 2003

    Microsoft IIS 5.0 (Windows XP/2000/NT 4.0) - WebDAV 'ntdll.dll' Remote Buffer Overflow (2)

    Open source ↗
  • Exploit-DBEDB-22365✓ verified
    First seen Mar 24, 2003

    Microsoft IIS 5.0 (Windows XP/2000/NT 4.0) - WebDAV 'ntdll.dll' Remote Buffer Overflow (1)

    Open source ↗
  • Exploit-DBEDB-2✓ verified
    First seen Mar 24, 2003

    Microsoft IIS 5.0 - WebDAV Remote

    Open source ↗
  • Exploit-DBEDB-1✓ verified
    First seen Mar 23, 2003

    Microsoft IIS - WebDAV 'ntdll.dll' Remote Overflow

    Open source ↗
  • Exploit-DBEDB-22368✓ verified
    First seen Mar 17, 2003

    Microsoft IIS 5.0 (Windows XP/2000/NT 4.0) - WebDAV 'ntdll.dll' Remote Buffer Overflow (4)

    Open source ↗

Frequently asked(4)

What is CVE-2003-0109?
CVE-2003-0109 is a none vulnerability published on March 31, 2003. 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.
When was CVE-2003-0109 disclosed?
CVE-2003-0109 was first published in the National Vulnerability Database on March 31, 2003, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2003-0109 actively exploited?
CVE-2003-0109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2003-0109?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-0109, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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