According to Microsoft, there has been a critical vulnerability on Windows that could enable remote code execution. The report can be read here:
The bug allows hackers to remotely take control of a PC, and has been present in every version of Microsoft’s operating system since Windows 95. The bug was rated at 9.3 out of a possible 10 on the Common Vulnerability Scoring System (CVSS), a measure of severity in computer security.
The good news is that Microsoft has tackled the security issues by releasing 14 software patches in its monthly security update for Windows, according to a report from the BBC.