Detections
Analytics

Security Updates for Microsoft SharePoint Server 2019 (May 2026)

high Nessus Plugin ID 314345

Language:

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:

 - Remote Code Execution (CVE-2026-33112, CVE-2026-33110, CVE-2026-35439, CVE-2026-40357, CVE-2026-40365, CVE-2026-40367, CVE-2026-40368, CVE-2026-45659)

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:
 -KB5002870

See Also

https://support.microsoft.com/help/5002870

Plugin Details

Severity: High

ID: 314345

File Name: smb_nt_ms26_may_office_sharepoint_2019.nasl

Version: 1.4

Type: Local

Agent: windows

Published: 5/12/2026

Updated: 5/29/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-40368

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS Score Source: CVE-2026-40365

Vulnerability Information

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

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 5/12/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-33110, CVE-2026-33112, CVE-2026-35439, CVE-2026-40357, CVE-2026-40365, CVE-2026-40367, CVE-2026-40368, CVE-2026-45659

IAVA: 2026-A-0461, 2026-A-0464, 2026-A-0468, 2026-A-0508

MSFT: MS26-5002870

MSKB: 5002870