Detections
Analytics

Security Updates for Microsoft Office Products (September 2026) (macOS)

high Nessus Plugin ID 346427

Synopsis

The Microsoft Office product installed on the remote host is affected by multiple vulnerabilities

Description

The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as referenced in the september-16-2026 advisory.

 - Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network. (CVE-2026-69678, CVE-2026-69767, CVE-2026-69797)

 - Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information over a network. (CVE-2026-69626)

 - Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.
 (CVE-2026-69632)

 - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. (CVE-2026-69671, CVE-2026-72972, CVE-2026-72973, CVE-2026-78510, CVE-2026-78511, CVE-2026-78517, CVE-2026-78521, CVE-2026-78526, CVE-2026-80085, CVE-2026-81952)

 - Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network. (CVE-2026-69686, CVE-2026-69722, CVE-2026-69759, CVE-2026-78504)

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

Solution

Update to Office for Mac version 16.113 or later.

See Also

http://www.nessus.org/u?8f5bccd4

Plugin Details

Severity: High

ID: 346427

File Name: macos_ms26_sep_office.nasl

Version: 1.1

Type: Local

Agent: macosx

Published: 9/16/2026

Updated: 9/16/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.01

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-69797

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:office

Required KB Items: Host/MacOSX/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/16/2026

Vulnerability Publication Date: 9/8/2026

Reference Information

CVE: CVE-2026-69626, CVE-2026-69632, CVE-2026-69671, CVE-2026-69678, CVE-2026-69686, CVE-2026-69719, CVE-2026-69722, CVE-2026-69734, CVE-2026-69759, CVE-2026-69767, CVE-2026-69797, CVE-2026-72938, CVE-2026-72972, CVE-2026-72973, CVE-2026-72974, CVE-2026-72975, CVE-2026-72976, CVE-2026-72977, CVE-2026-77898, CVE-2026-77901, CVE-2026-78439, CVE-2026-78502, CVE-2026-78503, CVE-2026-78504, CVE-2026-78505, CVE-2026-78506, CVE-2026-78507, CVE-2026-78509, CVE-2026-78510, CVE-2026-78511, CVE-2026-78512, CVE-2026-78513, CVE-2026-78514, CVE-2026-78515, CVE-2026-78517, CVE-2026-78518, CVE-2026-78520, CVE-2026-78521, CVE-2026-78524, CVE-2026-78525, CVE-2026-78526, CVE-2026-80076, CVE-2026-80078, CVE-2026-80080, CVE-2026-80082, CVE-2026-80085, CVE-2026-80086, CVE-2026-80087, CVE-2026-80088, CVE-2026-80089, CVE-2026-80090, CVE-2026-80091, CVE-2026-81386, CVE-2026-81387, CVE-2026-81388, CVE-2026-81389, CVE-2026-81390, CVE-2026-81391, CVE-2026-81392, CVE-2026-81393, CVE-2026-81394, CVE-2026-81395, CVE-2026-81396, CVE-2026-81397, CVE-2026-81398, CVE-2026-81399, CVE-2026-81400, CVE-2026-81401, CVE-2026-81947, CVE-2026-81948, CVE-2026-81949, CVE-2026-81950, CVE-2026-81951, CVE-2026-81952, CVE-2026-81953, CVE-2026-81954, CVE-2026-81955, CVE-2026-81956, CVE-2026-81957, CVE-2026-81958, CVE-2026-81959, CVE-2026-81960, CVE-2026-85875