This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow for remote code execution if an attacker successfully convinces a user to browse to a specially crafted website that accepts user-provided online content, or convinces a user to open specially crafted content. Successful exploitation could result in the attacker gaining the same user rights as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
- Windows 8.1
- Windows Server 2012 R2
- Windows RT 8.1
- Windows 10
A vulnerability exists when Windows Shell improperly handles object in memory which could allow for arbitrary code execution.
Successful exploitation could result in the attacker gaining the same user rights as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
- After appropriate testing, apply appropriate patches provided by Microsoft to vulnerable systems.
- Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
- Remind users not to visit untrusted websites or follow links provided by unknown or untrusted sources.
- Do not open email attachments from unknown or untrusted sources or suspicious emails from trusted sources.