Security Updates for Windows 10 / Windows Server 2016 / Windows Server 2019 (November 2020)

medium Nessus Plugin ID 143043


The remote Windows host is missing a microcode update.


The remote Windows host is missing a security update. It is, therefore, missing microcode updates to address the following vulnerabilities:

- Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126).

- Microarchitectural Load Port Data Sampling (CVE-2018-12127)

- Intel® Running Average Power Limit (RAPL) Interface (CVE-2020-8695)

Note that Nessus did not actually test for these flaws nor checked the target processor architecture but instead, has relied on the version of mcupdate_GenuineIntel.dll to be latest for supported Windows release.


Microsoft has released security updates for Windows 10, Windows Server 2016 and Server 2019.

See Also

Plugin Details

Severity: Medium

ID: 143043

File Name: smb_nt_ms20_nov_oob_microcode.nasl

Version: 1.8

Type: local

Agent: windows

Published: 11/18/2020

Updated: 6/17/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 6.0


Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-11091


Risk Factor: Medium

Base Score: 5.6

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2016, cpe:/o:microsoft:windows_server_2019

Required KB Items: Settings/ParanoidReport, SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/11/2020

Vulnerability Publication Date: 11/10/2020

Reference Information

CVE: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091, CVE-2020-8695, CVE-2020-8696, CVE-2020-8698

MSFT: MS20-4589198, MS20-4589206, MS20-4589208, MS20-4589210, MS20-4589211, MS20-4589212

MSKB: 4589198, 4589206, 4589208, 4589210, 4589211, 4589212