---
title: "CVE-2003-0109: Buffer overflow in ntdll.dll on Microsoft… | CubePath"
description: "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…"
language: en
source: https://cubepath.com/security/cve/CVE-2003-0109
---

# CVE-2003-0109: Buffer overflow in ntdll.dll on Microsoft… | CubePath

## Description

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.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2003-0109)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.85681 (85.7% probability)

Percentile

99.7%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [20030326 WebDAV exploit: using wide character decoder scheme](http://marc.info/?l=bugtraq&m=104869293619064&w=2)  (marc.info) mailing-list
- [20030321 New attack vectors and a vulnerability dissection of MS03-007](http://marc.info/?l=bugtraq&m=104826476427372&w=2)  (marc.info) mailing-list
- [oval:org.mitre.oval:def:109](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A109)  (oval.cisecurity.org) vdb-entry signature
- [20030325 IIS 5.0 WebDAV -Proof of concept-. Fully documented.](http://marc.info/?l=bugtraq&m=104861839130254&w=2)  (marc.info) mailing-list
- [nextgenss.com/papers/ms03-007-ntdll.pdf](http://www.nextgenss.com/papers/ms03-007-ntdll.pdf)
- [http-webdav-long-request(11533)](http://www.iss.net/security%5Fcenter/static/11533.php)  (iss.net) vdb-entry
- [Q815021](http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ815021)  (support.microsoft.com) vendor-advisory
- [20030317 Microsoft IIS WebDAV Remote Compromise Vulnerability](http://www.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=22029)  (iss.net) third-party-advisory
- [20030328 Fate Research Labs Presents: Analysis of the NTDLL.DLL Exploit](http://marc.info/?l=bugtraq&m=104887148323552&w=2)  (marc.info) mailing-list
- [7116](http://www.securityfocus.com/bid/7116)  (securityfocus.com) vdb-entry
- [microsoft.com/downloads/details.aspx?FamilyId=C9A38D45-5145…](http://microsoft.com/downloads/details.aspx?FamilyId=C9A38D45-5145-4844-B62E-C69D32AC929B&displaylang=en)
- [20030708 WDAV exploit without netcat and with pretty magic number](http://marc.info/?l=bugtraq&m=105768156625699&w=2)  (marc.info) mailing-list
- [20030321 New attack vectors and a vulnerability dissection of MS03-007](http://marc.info/?l=ntbugtraq&m=104826785731151&w=2)  (marc.info) mailing-list
- [MS03-007](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-007)  (docs.microsoft.com) vendor-advisory
- [VU#117394](http://www.kb.cert.org/vuls/id/117394)  (kb.cert.org) third-party-advisory
- [CA-2003-09](http://www.cert.org/advisories/CA-2003-09.html)  (cert.org) third-party-advisory

## Timeline

1. ID reserved Feb 26, 2003
2. Record published Mar 18, 2003
3. Record last updated Aug 8, 2024

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## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:57 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)