#Security Vulnerability

**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 sensitive information.

**According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L) but have no effect on integrity (I:N) or on availability (A:N). What does that mean for this vulnerability?** An attacker who successfully exploited the vulnerability could view some sensitive information (Confidentiality) but not all resources within the impacted component may be divulged to the attacker. The attacker cannot make changes to disclosed information (Integrity) or limit access to the resource (Availability).

**According to the CVSS metric, the Attack Vector is Physical (AV:P). What does that mean for this vulnerability?** An attacker needs physical access to the target computer to plug in a malicious USB drive.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** An attacker would have to convince the user to load a malicious file onto a vulnerable system, typically by way of an enticement in an Email or Instant Messenger message, and then convince the user to manipulate the specially crafted file, but not necessarily click or open the malicious file.

**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 a client to connect to a malicious server, and that could allow the attacker to gain code execution on the client.

**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. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

**According to the CVSS metric, the Attack Vector is Physical (AV:P). What does that mean for this vulnerability?** An attacker needs physical access to the target computer to plug in a malicious USB drive.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** Exploitation of this vulnerability requires that an attacker convinces a user to open a maliciously crafted package file in Visual Studio.

**The following mitigating factors might be helpful in your situation:** This vulnerability is only exploitable only if there is a program listening on a Pragmatic General Multicast (PGM) port. If PGM is installed or enabled but no programs are actively listening as a receiver, then this vulnerability is not exploitable. PGM does not authenticate requests so it is recommended to protect access to any open ports at the network level (e.g. with a firewall). It is not recommended to expose a PGM receiver to the public internet.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to carefully time their actions to exploit the timing differences in the execution of specific operations. They must accurately measure these timing variations to infer sensitive information or gain unauthorized access. This often involves sophisticated techniques to manipulate and observe the timing behavior of the target system.