At Aspyn Information Services, we rely on Wazuh for robust security monitoring, but even the best tools require proactive maintenance. Recently, we encountered a situation where a Wazuh SIEM instance on a Linux VM became completely unresponsive. The culprit? Disk space exhaustion, specifically caused by the vulnerability detection feed. When your disk fills up to 100%, services like the Wazuh Dashboard stop loading because the underlying database and OS cannot write essential logs or temporary files. Here is how we…