CVE-2003-0109

NONECVSS 0.0Weaponized

0.0

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: —
EPSS: 99.5%
KEV: Not listed

Published

March 31, 2003

Last Modified

April 16, 2026

References (32)

cve@mitrehttp://marc.info/?l=bugtraq&m=104826476427372&w=2
cve@mitrehttp://marc.info/?l=bugtraq&m=104861839130254&w=2
cve@mitrehttp://marc.info/?l=bugtraq&m=104869293619064&w=2
cve@mitrehttp://marc.info/?l=bugtraq&m=104887148323552&w=2
cve@mitrehttp://marc.info/?l=bugtraq&m=105768156625699&w=2
cve@mitrehttp://marc.info/?l=ntbugtraq&m=104826785731151&w=2
cve@mitrehttp://microsoft.com/downloads/details.aspx?FamilyId=C9A38D45-5145-4844-B62E-C69D32AC929B&displaylang=en
cve@mitrehttp://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ815021
cve@mitrehttp://www.cert.org/advisories/CA-2003-09.html
cve@mitrehttp://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=22029
cve@mitrehttp://www.iss.net/security_center/static/11533.php
cve@mitrehttp://www.kb.cert.org/vuls/id/117394
cve@mitrehttp://www.nextgenss.com/papers/ms03-007-ntdll.pdf
cve@mitrehttp://www.securityfocus.com/bid/7116
cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-007

Data Freshness Timeline

(refreshed 3× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:37 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

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 April 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 99.5% 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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CVE-2003-0109

📅 Published

🔄 Last Modified

🔗 References (32)