Security Updates for Microsoft Office Products C2R Multiple Vulnerabilities (September 2023)

critical Nessus Plugin ID 181345


The Microsoft Office Products are missing a security update.


The Microsoft Office Products are missing a security update. It is, therefore, affected by multiple vulnerabilities, as follows:

- A heap buffer overflow. (CVE-2023-27911)

- A security feature bypass. (CVE-2023-36767)

- A spoofing vulnerability. (CVE-2023-41764)

- An elevation of privilege vulnerability. (CVE-2023-36765)

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


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

See Also

Plugin Details

Severity: Critical

ID: 181345

File Name: smb_nt_ms23_sep_office_c2r.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 9/13/2023

Updated: 10/13/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 6.7


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-2023-36765


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 9/12/2023

Vulnerability Publication Date: 9/12/2023

Reference Information

CVE: CVE-2023-27911, CVE-2023-36765, CVE-2023-36767, CVE-2023-41764

IAVA: 2023-A-0474-S