#microsoft

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors might be helpful in your situation: The Windows message queuing service, which is a Windows component, needs to be enabled for a system to be exploitable by this vulnerability. This feature can be added via the Control Panel. You can check to see if there is a service running named **Message Queuing** and TCP port 1801 is listening on the machine.

**According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?** To exploit this vulnerability, an attacker would need to send a specially crafted malicious MSMQ packet to a MSMQ server. The vulnerability is triggered when a user on the target machine accesses message queuing, which could result in a denial of service.

**According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?** To exploit this vulnerability, an attacker would need to send a specially crafted malicious MSMQ packet to a MSMQ server. The vulnerability is triggered when a user on the target machine accesses message queuing, which could result in a denial of service.

**According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?** To exploit this vulnerability, an attacker would need to send a specially crafted malicious MSMQ packet to a MSMQ server. The vulnerability is triggered when a user on the target machine accesses message queuing, which could result in a denial of service.

**According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?** To exploit this vulnerability, an attacker would need to send a specially crafted malicious MSMQ packet to a MSMQ server. The vulnerability is triggered when a user on the target machine accesses message queuing, which could result in a denial of service.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is memory layout - the vulnerability allows an attacker to collect information that facilitates predicting addressing of the memory.

**Are the updates for the Microsoft Office for Mac currently available?** The security update for Microsoft Office 2019 for Mac and Microsoft Office LTSC for Mac 2021 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.

**There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?** Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

**Is the Preview Pane an attack vector for this vulnerability?** No, the Preview Pane is not an attack vector.

**According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H), integrity (I:H) and availability (A:H). What does that mean for this vulnerability?** An attacker who successfully exploited this vulnerability could access a user's Net-NTLMv2 hash which could be used as a basis of an NTLM Relay attack against another service to authenticate as the user.