Microsoft Security Response Center

**According to the CVSS metric, attack vector is (AV:N) and user interaction is none (UI:N). What does that mean for this vulnerability?** This can happen without user intervention. An attacker can use an uninitialized function pointer being called when decoding a JPEG image. This can be embedded in Office and 3rd party documents/files

**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.

Weak authentication in Windows Installer allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.

**How could an attacker exploit the vulnerability?** To exploit this vulnerability, an attacker would need to send a series of specially crafted MSMQ packets in a rapid sequence over HTTP to a MSMQ server. This could result in remote code execution on the server side.

Weak authentication in Remote Desktop Client allows an unauthorized attacker to perform spoofing over a network.

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

**According to the CVSS metric, the attack vector is network (AV:N), user interaction is required (UI:R), and privileges required are none (PR:N). What does that mean for this vulnerability?** Exploitation of this vulnerability requires an unauthorized attacker to wait for a user to initiate a connection to a malicious server that the attacker has set up prior to the user connecting.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges over a network.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB allows an unauthorized attacker to execute code over a network.