Security Updates for Exchange (January 2022)

critical Nessus Plugin ID 156745


The Microsoft Exchange Server installed on the remote host is affected by multiple vulnerabilities.


The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by a remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary code.


Microsoft has released KB5008631 to address this issue.

See Also

Plugin Details

Severity: Critical

ID: 156745

File Name: smb_nt_ms22_jan_exchange.nasl

Version: 1.3

Type: local

Agent: windows

Published: 1/14/2022

Updated: 3/11/2022

Risk Information


Risk Factor: High

Score: 8.1


Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2022-21846


Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: cpe:2.3:a:microsoft:exchange_server:*:*:*:*:*:*:*:*

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 1/11/2022

Vulnerability Publication Date: 1/11/2022

Reference Information

CVE: CVE-2022-21969, CVE-2022-21846, CVE-2022-21855

MSKB: 5008631

MSFT: MS22-5008631

IAVA: 2022-A-0009-S