Security Updates for Microsoft Office Products C2R (October 2025)

high Nessus Plugin ID 271235

Synopsis

The Microsoft Office Products are affected by multiple vulnerabilities.

Description

The Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:

- Remote code execution vulnerabilities that attackers can exploit to bypass authentication and execute unauthorized arbitrary commands. (CVE-2025-59227, CVE-2025-59234)

- A denial of service (DoS) vulnerability. (CVE-2025-59229)

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 patches to address these issues.

For Office 365, Office 2016 C2R, or Office 2019, ensure automatic updates are enabled or open any office app and manually perform an update.

Plugin Details

Severity: High

ID: 271235

File Name: smb_nt_ms25_oct_office_c2r.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 10/23/2025

Updated: 10/23/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

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

CVSS Score Source: CVE-2025-59234

CVSS v3

Risk Factor: High

Base Score: 8.8

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

Vulnerability Information

CPE: cpe:/a:microsoft:office

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Patch Publication Date: 10/14/2025

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-59227, CVE-2025-59229, CVE-2025-59234

IAVA: 2025-A-0759

Detections

Analytics