CVE-2026-37231

Name of the Vulnerable Software and Affected Versions FlexRIC version 2.0.0

Description An issue exists where a uint16 t counter is used for xapp id assignment but is stored in uint32 t message fields. After more than 65,530 E42 SETUP REQUESTs, the 16-bit counter wraps around, resulting in duplicate xapp ids. This causes the iApp (port 36422) to crash when it attempts to register a duplicate ID within its internal data structure. A remote attacker can trigger this crash by repeatedly connecting and requesting new xApp registrations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.