Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
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.
Security updates
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
5439.1000 — https://support.microsoft.com/help/5002565
Vulnerabilities 1
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High 7.8
Microsoft Office Visio Remote Code Execution Vulnerability
Microsoft Office Visio Remote Code Execution Vulnerability
Revision history
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#2
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.
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#1
Information published.
References
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CVE-2023-36866 Microsoft Office Visio Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36866
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss