#rce

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** An attacker is required to compromise the credential of a victim who has been assigned the role of “Cluster Admin” or “Cluster Operator” by an administrator prior to attempting to exploit the vulnerability.

**According to the CVSS metric, user interaction is required (UI:R) and privileges required are none (PR:N). What does that mean for this vulnerability?** An unauthorized attacker must wait for a user to initiate a connection.

**How could an attacker exploit this vulnerability?** An attacker could exploit a use after free vulnerability within the OS SAPI component to execute arbitrary code in the context of the compromised user to disclose sensitive information, compromise system integrity or impact the availability of the victim's system.

**What does the security update provide to mitigate the risks associated with this vulnerability?** The security update will prevent untrusted Microsoft Saved Console (MSC) files from being opened to protect customers against the risks associated with this vulnerability.

**How could an attacker exploit this vulnerability?** An unauthenticated attacker could send a specially crafted protocol message to a Routing and Remote Access Service (RRAS) server, which could lead to remote code execution (RCE) on the RAS server machine.

**According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is required (UI:R). What is the target context of the remote code execution?** This attack requires an admin user on the client to connect to a malicious server, and that could allow the attacker to gain code execution on the client.

**How could an attacker exploit this vulnerability?** In the case of a Remote Desktop connection, an attacker with control of a Remote Desktop Server could trigger a remote code execution (RCE) on the RDP client machine when a victim connects to the attacking server with the vulnerable Remote Desktop Client.

**Why are there no links to an update or instructions with steps that must be taken to protect from this vulnerability?** This vulnerability has already been fully mitigated by Microsoft. There is no action for users of this service to take. This purpose of this CVE is to provide further transparency. Please see Toward greater transparency: Unveiling Cloud Service CVEs for more information.

**How could an attacker exploit this vulnerability?** To exploit this vulnerability, an unauthenticated attacker would need to send malformed packets to a RPC host. This could result in remote code execution on the server side with the same permissions as the RPC service.

**How could an attacker exploit this vulnerability?** An attacker who successfully exploited this vulnerability could gain remote code execution (RCE) on the victim's machine.