Microsoft Security Response Center

**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.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to disclose information locally.

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

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

**How could an attacker exploit this vulnerability?** An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege to System.

Uncontrolled resource consumption in Windows Kerberos allows an unauthorized attacker to deny service over a network.

**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 win a race condition.

**How could an attacker exploit this vulnerability?** An attacker could exploit this vulnerability by tricking a user into sending a request to a malicious server. This could result in the server returning malicious data that might cause arbitrary code execution on the user's system.

**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 win a race condition.