Detections
Analytics

Security Updates for Microsoft SharePoint Server Subscription Edition (May 2026)

high Nessus Plugin ID 314338

Synopsis

The Microsoft SharePoint Server Subscription Edition installation on the remote host is missing a security update.

Description

The Microsoft SharePoint Server Subscription Edition 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-2026-40368)

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 security updates to address this issue.

See Also

https://support.microsoft.com/help/5002863

Plugin Details

Severity: High

ID: 314338

File Name: smb_nt_ms26_may_office_sharepoint_subscr.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 5/12/2026

Updated: 5/12/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS v2

Risk Factor: High

Base Score: 9.3

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

CVSS Score Source: CVE-2026-33112

CVSS v3

Risk Factor: High

Base Score: 8.8

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

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_server:subscription

Required KB Items: SMB/MS_Bulletin_Checks/Possible

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-2026-40368

MSFT: MS26-5002863

MSKB: 5002863