Microsoft Forefront Client Security Unsupported

critical Nessus Plugin ID 43164
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.


An antivirus program that is no longer supported is installed on the remote host.


According to its version, the installation of Microsoft Forefront Client Security on the remote host is no longer supported.

Lack of support implies that no new security patches for the product will be released by the vendor. As a result, it is likely to contain security vulnerabilities.


Migrate to a different antivirus product.

See Also

Plugin Details

Severity: Critical

ID: 43164

File Name: fcs_installed.nasl

Version: 1.1010

Type: local

Agent: windows

Family: Windows

Published: 12/15/2009

Updated: 9/22/2020

Dependencies: smb_enum_services.nasl, smb_hotfixes.nasl

Asset Inventory: true

Risk Information


Risk Factor: Critical

Base Score: 10

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


Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

CPE: cpe:/a:microsoft:forefront_client_security

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

Reference Information

IAVA: 0001-A-0555