MS11-046: Vulnerability in Ancillary Function Driver Could Allow Elevation of Privilege (2503665)

high Nessus Plugin ID 55126


The remote Windows host contains a driver that allows privilege escalation.


The remote Windows host contains a version of the Ancillary Function Driver (afd.sys) that does not properly validate input before passing it from user mode to the kernel.

An attacker with local access to the affected system could exploit this issue to execute arbitrary code in kernel mode and take complete control of the affected system.


Microsoft has released a set of patches for Windows XP, 2003, Vista, 2008, 7, and 2008 R2.

See Also

Plugin Details

Severity: High

ID: 55126

File Name: smb_nt_ms11-046.nasl

Version: 1.18

Type: local

Agent: windows

Published: 6/15/2011

Updated: 11/15/2018

Risk Information


Risk Factor: Critical

Score: 9.5


Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

Temporal Vector: E:H/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: 6/14/2011

Vulnerability Publication Date: 6/14/2011

Exploitable With

Core Impact

Reference Information

CVE: CVE-2011-1249

BID: 48198

EDB-ID: 18755

MSFT: MS11-046

MSKB: 2503665