Microsoft Security Response Center

Out-of-bounds read in Windows MapUrlToZone allows an unauthorized attacker to disclose information over a network.

**There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?** Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

Use of uninitialized resource in Windows Kernel allows an unauthorized attacker to elevate privileges locally.

Improper input validation in Windows Kernel allows an authorized attacker to elevate privileges locally.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** An attacker must send the user a malicious file and convince them to open it.

**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.

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** An attacker must send the user a malicious file and convince them to open it.

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.