CVE-2025-22457: UNC5221 Exploits Ivanti Zero-Day Flaw to Deploy TRAILBLAZE and BRUSHFIRE Malware Vulnerability CVE-2025-22457: UNC5221 Exploits Ivanti Zero-Day Flaw to Deploy TRAILBLAZE and BRUSHFIRE Malware Do Son April 3, 2025 0 Learn about CVE-2025-22457, a critical vulnerability in Ivanti products that allows remote code execution by attackers.