Emerging Threat: Ivanti CVE-2025-22457
CVE-2025-22457, a critical vulnerability (CVSS 9.0) affecting Ivanti Connect Secure, Ivanti Policy Secure, and Ivanti ZTA Gateways. The issue stems from a stack-based buffer overflow triggered by sending a specially crafted X-Forwarded-For HTTP header. Successful exploitation enables unauthenticated remote code execution. This vulnerability was originally misidentified as a buffer overflow vulnerability that could not lead to either remote code execution (RCE) or denial of service (DoS).