{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44474", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-06T17:18:51.782Z", "datePublished": "2026-05-27T15:14:49.390Z", "dateUpdated": "2026-05-27T17:23:14.076Z"}, "containers": {"cna": {"title": "Ella Core: Handover failures during concurrent Security Mode Command", "problemTypes": [{"descriptions": [{"cweId": "CWE-358", "lang": "en", "description": "CWE-358: Improperly Implemented Security Check for Standard", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q"}], "affected": [{"vendor": "ellanetworks", "product": "core", "versions": [{"version": "< 1.10.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-27T15:14:49.390Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-mc29-hmx6-856q", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-27T17:22:21.103731Z", "id": "CVE-2026-44474", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-27T17:23:14.076Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-44474", "lastModified": "2026-05-27T17:16:39.220", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-27T17:16:39.220", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-358"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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