Ella Core has handover failures during concurrent Security Mode Command

Summary Ella Core didn't enforce security rules on concurrent running of security procedures defined in TS 33.501 §6.9.5.1 — it could send a NAS Security Mode Command while an N2 handover was still pending and vice versa. Impact Concurrent Security Mode Command and N2 handover produce a KgNB...

PT-2026-39668

Name of the Vulnerable Software and Affected Versions Ella Core versions prior to 1.10.0 Description Ella Core fails to enforce security rules regarding the concurrent execution of security procedures. Specifically, the system may send a NAS Security Mode Command while an N2 handover is still...