FlexRIC v2.0.0 contains a denial of service vulnerability in its E2AP message handlers. The vulnerability exists in stub message handlers for whitelisted but unimplemented E2AP message types in the near-RT RIC component. Remote unauthenticated attackers can exploit this by sending specially crafted E2AP PDU messages that pass whitelist validation but trigger unconditional assertions. When exploited, the vulnerability causes the near-RT RIC process to crash via SIGABRT signal on port 36421. The issue affects message types like E2nodeConfigurationUpdate that are whitelisted but lack proper implementation, making the system vulnerable to remote denial of service attacks.