Microsoft Security Response Center

Use after free in Windows PrintWorkflowUserSvc 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.

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

**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.

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Configuration Manager allows an unauthorized attacker to elevate privileges locally.

Use after free in Windows Resilient File System (ReFS) Deduplication Service allows an unauthorized attacker to elevate privileges locally.

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

**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, 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 Microsoft Office allows an unauthorized attacker to execute code locally.