MS09-066: Vulnerability in Active Directory Could Allow Denial of Service (973309)

high Nessus Plugin ID 42440
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The installed version of Active Directory is affected by a denial of service vulnerability.


The installed version of Microsoft Active Directory / Active Directory Application Mode / Active Directory Lightweight Directory Service has a buffer overflow vulnerability. By sending specially crafted LDAP or LDAPS requests, a remote attacker can exhaust stack space and cause the affected host to stop responding until it is restarted.


Microsoft has released a set of patches for Windows 2000, XP, 2003, and 2008.

See Also

Plugin Details

Severity: High

ID: 42440

File Name: smb_nt_ms09-066.nasl

Version: 1.22

Type: local

Agent: windows

Published: 11/10/2009

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information


Risk Factor: Medium

Score: 5.1


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

Temporal Vector: E:F/RL:OF/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: 11/10/2009

Vulnerability Publication Date: 11/10/2009

Exploitable With

Core Impact

Reference Information

CVE: CVE-2009-1928

BID: 36918

MSFT: MS09-066

MSKB: 973037, 973039

CWE: 399