CVE-2023-35372: Microsoft Office Visio Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2023-Aug

Released

2023-08-08

Last Updated

2024-03-12

EPSS Score

0.46% (percentile: 64.0%)

FAQ

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer. According to the CVSS metric, successful exploitation of this vulnerability could lead to total loss of confidentiality (C:H), integrity (I:H), and availability (A:H). What does that mean for this vulnerability? An attacker who successfully exploits this vulnerability could perform a remote attack that could enable access to the victim's information and the ability to alter information. Successful exploitation could also potentially cause downtime for the targeted environment.

Affected Products (8)

Microsoft Office

• Microsoft Office LTSC 2021 for 64-bit editions
• Microsoft 365 Apps for Enterprise for 64-bit Systems
• Microsoft Office LTSC 2021 for 32-bit editions
• Microsoft 365 Apps for Enterprise for 32-bit Systems
• Microsoft Office 2019 for 64-bit editions
• Microsoft Visio 2016 (64-bit edition)
• Microsoft Visio 2016 (32-bit edition)
• Microsoft Office 2019 for 32-bit editions

Acknowledgments

<a href="https://www.notion.so/dong-uk-kim-91de2ceb59c44c6ea7533b0e8b2e35af">Kim Dong-Uk (@justlikebono)</a>

Revision History

• 2023-08-08: Information published.
• 2024-03-12: In the Security Updates table added Microsoft Visio 2016 (32-bit edition) and Microsoft Visio 2016 (64-bit edition) as these versions of Visio are also affected by the vulnerability. Microsoft strongly recommends that customers running any of these versions of Visio install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.