Ella Core: Handover failures during concurrent Security Mode Command_CVE-2026-44474

{
    "lastseen": "",
    "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 \u00a76.9.5.1 \u2014 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.",
    "published": "2026-05-27T15:14:49.390Z",
    "modified": "2026-05-27T15:14:49.390Z",
    "type": "cve",
    "title": "Ella Core: Handover failures during concurrent Security Mode Command",
    "source": "GitHub_M",
    "references": "https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q",
    "id": "CVE-2026-44474",
    "bulletinFamily": "",
    "cwe": [
        "CWE-358"
    ],
    "cvelist": null,
    "sourceData": "ellanetworks core < 1.10.0",
    "sourceHref": "",
    "cvss": {
        "score": 3.7,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "core",
    "version": "< 1.10.0",
    "vendor": "ellanetworks",
    "ai_description": "",
    "ai_severity": "",
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    "ai_product": "",
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    "ai_score": 0
}