The rule detects unauthorized exploitation attempts targeting the React Server Components vulnerability associated with CVE-2025-55182 using Cisco Secure Firewall's Intrusion Event logs. By monitoring events linked to Snort signature 65554, the rule identifies potential exploitation activities and raises alerts when such patterns are detected. If confirmed, these events may indicate an active attempt to exploit the aforementioned vulnerability, which scores highly in severity due to its potential implications for affected systems. Implementing this rule requires proper configuration of the Splunk environment to accommodate the specific logging mechanisms used by Cisco Secure Firewall, including handling false positives that could emerge from security testing scenarios.