Detections
Analytics

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

high Nessus Plugin ID 343865

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Synopsis

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

Description

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

 - Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. (CVE-2026-69268, CVE-2026-69273, CVE-2026-69282)

 - Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network. (CVE-2026-69464)

 - Missing authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. (CVE-2026-69465, CVE-2026-69724)

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:
 - Update to version 16.0.20326.20094

See Also

https://support.microsoft.com/help/5002908

Plugin Details

Severity: High

ID: 343865

File Name: smb_nt_ms26_sep_office_sharepoint_subscr.nasl

Version: 1.3

Type: Local

Agent: windows

Published: 9/8/2026

Updated: 9/11/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.45

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-69683

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

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

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

Vulnerability Information

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

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 9/8/2026

Reference Information

CVE: CVE-2026-69268, CVE-2026-69273, CVE-2026-69282, CVE-2026-69402, CVE-2026-69409, CVE-2026-69417, CVE-2026-69464, CVE-2026-69465, CVE-2026-69615, CVE-2026-69636, CVE-2026-69683, CVE-2026-69690, CVE-2026-69716, CVE-2026-69724, CVE-2026-69804, CVE-2026-69904

CWE: 250, 284, 367, 79, 862, 89, 918

IAVA: 2026-A-0954

MSFT: MS26-5002908

MSKB: 5002908