CVE-2026-44474
Ella Core is a 5G core designed for private networks. Prior to 1.10.0, 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). Concurrent Security Mode Command and N2 handover produce a KgNB mismatch between the UE and target gNB, causing the handover to fail. Requires a stalled gNB + re-registration race to trigger. This vulnerability is fixed in 1.10.0.
Scoring
- Severity
- LOW
- CVSS base score
- 3.7
- CVSS vector
- CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
- EPSS probability
- 0.13%
- CWE
- CWE-358
- Published
- 2026-05-27
- Last modified
- 2026-05-27
Affected products
- ellanetworks core
Weakness type
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