MS03-007: Unchecked Buffer in ntdll.dll (815021)

critical Nessus Plugin ID 11413


Arbitrary code can be executed on the remote host.


The remote version of Windows contains a buffer overflow in the Windows kernel, that could allow an attacker to execute arbitrary code on the remote host with SYSTEM privileges.

For example this vulnerability can be exploited through the WebDAV component of IIS 5.0.

A public exploit is available.


Microsoft has released a set of patches for Windows NT, 2000 and XP.

See Also

Plugin Details

Severity: Critical

ID: 11413

File Name: smb_nt_ms03-007.nasl

Version: 1.50

Type: local

Agent: windows

Published: 3/18/2003

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information


Risk Factor: High

Score: 7.4


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2003

Vulnerability Publication Date: 3/17/2003

Exploitable With


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

Reference Information

CVE: CVE-2003-0109

BID: 7116

CERT: 117394

MSFT: MS03-007

MSKB: 815021