Detections
Analytics

Security Updates for Microsoft Office Online Server (September 2025)

high Nessus Plugin ID 265373

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Synopsis

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

Description

The Microsoft Office Online Server installation on the remote host is missing security updates. It is, therefore, affected by multiple remote code execution vulnerabilities. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands.

Solution

Microsoft has released 5002776 to address this issue.

See Also

https://support.microsoft.com/en-us/help/5002776

Plugin Details

Severity: High

ID: 265373

File Name: smb_nt_ms25_sept_office_web.nasl

Version: 1.1

Type: local

Agent: windows

Published: 9/18/2025

Updated: 9/18/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

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

CVSS Score Source: CVE-2025-54896

CVSS v3

Risk Factor: High

Base Score: 7.8

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

Vulnerability Information

CPE: cpe:/a:microsoft:office_online_server, cpe:/a:microsoft:office_web_apps

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Patch Publication Date: 9/9/2025

Vulnerability Publication Date: 9/9/2025

Reference Information

CVE: CVE-2025-54896, CVE-2025-54898, CVE-2025-54900, CVE-2025-54902, CVE-2025-54903, CVE-2025-54904

IAVA: 2025-A-0666

MSFT: MS25-5002776

MSKB: 5002776