React2Shell: Understanding the Critical CVE-2025-55182 Vulnerability in React Server Components

React2Shell (CVE-2025-55182) is a critical RCE vulnerability in React Server Components (CVSS 10.0). Unauthenticated attackers can execute arbitrary code on servers via malicious RSC payloads. Affects Next.js 15.0.0-16.0.6 & 2.15M+ exposed services. PoCs public since Dec 4. IMMEDIATE PATCHING REQUIRED.