Microsoft Exchange Server Unsupported Version Detection

critical Nessus Plugin ID 22313
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 Microsoft Exchange Server running on the remote host is no longer supported.


According to its self-reported version number, the installation of Microsoft Exchange Server 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.


Upgrade to a version of Microsoft Exchange Server that is currently supported.

See Also

Plugin Details

Severity: Critical

ID: 22313

File Name: smb_exchange_unsupported.nasl

Version: 1.39

Type: local

Agent: windows

Family: Windows

Published: 9/8/2006

Updated: 7/15/2021

Dependencies: smb_hotfixes.nasl, microsoft_exchange_installed.nbin

Risk Information

CVSS Score Source: manual

CVSS Score Rationale: Score for unsupported software


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:exchange_server

Required KB Items: installed_sw/Microsoft Exchange

Reference Information

IAVA: 0001-A-0554