Security Updates for Microsoft SharePoint Server 2019 (April 2026)

medium Nessus Plugin ID 306456

Synopsis

The Microsoft SharePoint Server installation on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft SharePoint 2019 Server installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

- Spoofing vulnerabilities (CVE-2026-20945, CVE-2026-32201)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Microsoft has released the following security updates to address this issue:
-KB5002854
-KB5002856

See Also

https://support.microsoft.com/help/5002854

https://support.microsoft.com/help/5002856

Plugin Details

Severity: Medium

ID: 306456

File Name: smb_nt_ms26_apr_office_sharepoint_2019.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 4/14/2026

Updated: 4/14/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 6.4

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

CVSS Score Source: CVE-2026-32201

CVSS v3

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_server:2019

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Patch Publication Date: 4/14/2026

Vulnerability Publication Date: 4/14/2026

Reference Information

CVE: CVE-2026-20945, CVE-2026-32201

MSFT: MS26-5002854, MS26-5002856

MSKB: 5002854, 5002856