Microsoft Windows 95/98/ME Unsupported Installation Detection

critical Nessus Plugin ID 21626
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 remote host is running a version of Microsoft Windows that is no longer supported by Microsoft.


The remote host is running a version of Microsoft Windows 9x (95, 98, or ME). Windows 95 support ended on December 31, 2001. Windows 98/ME support ended on July 11, 2006.

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


Upgrade to a version of Windows that is currently supported.

See Also

Plugin Details

Severity: Critical

ID: 21626

File Name: smb_win_9x.nasl

Version: 1.29

Type: combined

Agent: windows

Family: Windows

Published: 6/1/2006

Updated: 9/22/2020

Dependencies: os_fingerprint.nasl, smb_nativelanman.nasl

Risk Information


Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_95, cpe:/o:microsoft:windows_98, cpe:/o:microsoft:windows_me

Excluded KB Items: Host/not_windows

Reference Information

IAVA: 0001-A-0027