On December 3, 2025, React maintainers disclosed a critical unauthenticated remote code execution (RCE) vulnerability in React Server Components (RSC), tracked as CVE-2025-55182. A working PoC was released publicly, and Wallarm immediately began observing widespread exploitation attempts across customer environments. What is CVE-2025-55182? CVE-2025-55182 is an unauthenticated remote code execution (RCE) vulnerability, rated CVSS 10.0, and it is already being actively exploited in the wild. For more details, you can refer to this advisory. The…