CVE-2026-44474

Published: May 27, 2026Modified: Jun 17, 2026Deferred

3.7

Vector

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

Exploitability: 1.2 / Impact: 2.5

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-358

Improperly Implemented Security Check for Standard

The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.

References (1)

https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q

Source: security-advisories@github.com

Timeline

No history available yet.