KB5003171: Windows 10 version 1809 / Windows Server 2019 Security Update (May 2021)

critical Nessus Plugin ID 149382


The remote host is missing one or more security updates.


The remote Windows host is missing security updates. It is, therefore, affected by multiple vulnerabilities: Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Microsoft has released KB5003171 to address this issue.

See Also


Plugin Details

Severity: Critical

ID: 149382

File Name: smb_nt_ms21_may_5003171.nasl

Version: 1.13

Type: local

Agent: windows

Published: 5/11/2021

Updated: 6/17/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Critical

Score: 9.2


Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-26419


Risk Factor: Critical

Base Score: 9.9

Temporal Score: 9.5

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2021-28476

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2019, cpe:/o:microsoft:windows_10_1809

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/11/2021

Vulnerability Publication Date: 5/11/2021

Reference Information

CVE: CVE-2020-24587, CVE-2020-24588, CVE-2020-26144, CVE-2021-26419, CVE-2021-28455, CVE-2021-28476, CVE-2021-28479, CVE-2021-31167, CVE-2021-31170, CVE-2021-31182, CVE-2021-31184, CVE-2021-31186, CVE-2021-31187, CVE-2021-31188, CVE-2021-31190, CVE-2021-31191, CVE-2021-31193, CVE-2021-31194

IAVA: 2021-A-0222-S, 2021-A-0223-S

MSFT: MS21-5003171

MSKB: 5003171