MS Security Advisory 2846338: Vulnerability in Microsoft Malware Protection Engine Could Allow Remote Code Execution

high Nessus Plugin ID 66425
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The remote host has an antimalware application that is affected by a code execution vulnerability.


A vulnerable version of Microsoft Malware Protection Engine (MMPE) is installed on the remote host. Scanning a maliciously crafted file can result in arbitrary code execution. This plugin checks if a vulnerable version of MMPE is being used by any of the following applications :

- Microsoft Forefront Client Security
- Microsoft Malicious Software Removal Tool
- Microsoft Security Essentials
- Microsoft Security Essentials Prerelease
- Windows Defender for Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2
- Windows Defender for Windows 8
- Microsoft Forefront Endpoint Protection 2010
- Microsoft System Center 2012 Endpoint Protection

These applications are only affected if they are using a scan engine less than 1.1.9506.0 on a 64-bit host.


Enable automatic updates to update the scan engine for the relevant antimalware applications. Refer to KB2510781 for information on how to verify MMPE has been updated.

See Also

Plugin Details

Severity: High

ID: 66425

File Name: smb_kb2846338.nasl

Version: 1.20

Type: local

Agent: windows

Family: Windows

Published: 5/15/2013

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, fcs_installed.nasl, smb_mrt_installed.nasl

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows, cpe:/a:microsoft:malware_protection_engine

Required KB Items: SMB/Registry/Enumerated, SMB/ARCH

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2013

Vulnerability Publication Date: 5/14/2013

Reference Information

CVE: CVE-2013-1346

BID: 59885

MSKB: 2846338