Detections
Analytics

Security Updates for Microsoft Office Products (March 2026)

high Nessus Plugin ID 301777

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Synopsis

The Microsoft Office Products are affected by multiple remote code execution vulnerabilities.

Description

The Microsoft Office Products are missing security updates. They are, therefore, affected by multiple remote code execution vulnerabilities. An attacker can exploit these to bypass authentication and execute unauthorized arbitrary commands. (CVE-2026-26108, CVE-2026-26110)

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 updates to address these issues:
 - KB5002718
 - KB5002838

See Also

https://support.microsoft.com/en-us/help/5002718

https://support.microsoft.com/en-us/help/5002838

Plugin Details

Severity: High

ID: 301777

File Name: smb_nt_ms26_mar_office.nasl

Version: 1.4

Type: local

Agent: windows

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: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-26108

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

CVSS Score Source: CVE-2026-26110

Vulnerability Information

CPE: cpe:/a:microsoft:office

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-2026-26108, CVE-2026-26110

IAVA: 2026-A-0227, 2026-A-0229

MSFT: MS26-5002718, MS26-5002838

MSKB: 5002718, 5002838