Fortinet has released emergency patches to address a zero-day vulnerability in FortiClient EMS, which allowed unauthorized attackers to remotely execute arbitrary code due to an improper access control bug. The vulnerability enables unauthenticated attackers to gain control, making it a high-severity issue. The exploited zero-day bug has significant implications, as it can be leveraged to compromise systems without any user interaction. Fortinet's swift response to the vulnerability is a testament to the urgency of the situation, highlighting the need for organizations to assess their exposure and apply the patches immediately1. The fact that zero-day activity is already targeting Fortinet products means that the window for patching is rapidly diminishing. This underscores the importance of prompt action to mitigate potential attacks. So what matters most to practitioners is that they must quickly evaluate their systems' vulnerability to this exploit and apply the necessary fixes to prevent remote code execution.