Although Microsoft discontinued Windows XP support more than five years ago (April 2014), the Redmond Giant decided to release a patch fixing a critical vulnerability in the system structure for the second time after it had finished supporting this system version. The first one concerned the famous WannaCry exploit, while the latest update is to fix the a gap caused by the malfunctioning of the remote desktop service.
The problem turned out to be very serious because although the vulnerability was detected on computers equipped with Windows 7, it can also be used in the XP version. The errors concern not so much the smooth operation of the remote desktop as the authentication module, which allows us to call the malicious code and infect not only the used machine, but also other, located in the same network, in a way similar to the aforementioned WannaCry.
Due to the fact that the support for Windows XP has officially ended, you have to download the patch yourself - you can find it on Microsoft's official website. The update was also published for Windows Server 2003 owners. Users of windows in versions newer than "7" can sleep peacefully - the company did not find any symptoms characteristic of the detected vulnerability.