#Security Vulnerability

Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to disclose information over a network.

Access of resource using incompatible type ('type confusion') in Windows Defender allows an authorized attacker to elevate privileges locally.

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Out-of-bounds read in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

**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.

Improper link resolution before file access ('link following') in XBOX allows an authorized attacker to elevate privileges locally.

**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.

Improper link resolution before file access ('link following') in Microsoft Teams allows an authorized attacker to elevate privileges locally.