Security Updates for Microsoft SharePoint Server 2016 (March 2026)

critical Nessus Plugin ID 301779

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Synopsis

The Microsoft SharePoint Server 2016 installation on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft SharePoint Server 2016 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

- Remote Code Execution vulnerabilities (CVE-2026-26106, CVE-2026-26113, CVE-2026-26114)
- Spoofing vulnerability in Microsoft SharePoint Server Subscription Edition (CVE-2026-26105)

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

Solution

Microsoft has released security updates to address this issue.

Plugin Details

Severity: Critical

ID: 301779

File Name: smb_nt_ms26_mar_office_sharepoint_2016.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 3/10/2026

Updated: 3/16/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-26105

CVSS v3

Risk Factor: Critical

Base Score: 9.3

Temporal Score: 8.1

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_server:2016

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 3/10/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-26105, CVE-2026-26106, CVE-2026-26113, CVE-2026-26114

IAVA: 2026-A-0226

MSFT: MS26-5002850

MSKB: 5002850

Detections

Analytics