Is CVE-2003-0109 actively exploited?

CVE-2003-0109 has no public evidence of in-the-wild exploitation as of 2026-04-16.

What is the CVSS score for CVE-2003-0109?

CVE-2003-0109 has a CVSS score of 7.5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P.

How do I patch CVE-2003-0109?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2003-0109.

CVE-2003-0109 - remediation guidance & executive summary

Q: Which products are affected by CVE-2003-0109?

8 products: microsoft windows 2000, microsoft windows 2000, microsoft windows 2000, microsoft windows 2000, microsoft windows 2000 terminal services, and 3 more.

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.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: partial
Integrity: partial
Availability: partial
Weaknesses: NVD-CWE-Other

Metadata

Primary Vendor: MICROSOFT
Published: 3/31/2003
Last Modified: 4/16/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : windows_2000microsoft : windows_2000microsoft : windows_2000microsoft : windows_2000microsoft : windows_2000_terminal_servicesmicrosoft : windows_2000_terminal_servicesmicrosoft : windows_2000_terminal_servicesmicrosoft : windows_2000_terminal_services

Remediation Guidance

Executive Summary

View on NIST NVD