Microsoft has confirmed that it is "investigating" reports of a possible denial of service vulnerability in the Windows Server Message Block (SMB) protocol. However, the company emphasized that the vulnerability could not be used to assume control of a machine or install malicious software.
"[We are] aware that detailed exploit code has been published for the vulnerability," Microsoft explained in an official advisory. "[We are] not currently aware of active attacks that use this exploit code or of customer impact at this time. [Nevertheless, we are] actively monitoring this situation."