{"id":"CVE-2026-44473","state":"PUBLISHED","title":"Ella Core: UE Downlink Redirection via Forged PDUSessionResourceSetupResponse","description":"Ella Core is a 5G core designed for private networks. Prior to 1.10.0, a radio with a valid NG Setup can send a forged PDUSessionResourceSetupResponse carrying any UE's AMF-UE-NGAP-ID. Ella Core does not verify the message arrived on the SCTP association bound to that UE's logical NG-connection, then creates a GTP tunnel towards that radio. This vulnerability is fixed in 1.10.0.","publishedAt":"2026-05-27T15:16:05.261Z","updatedAt":"2026-05-28T14:33:35.170Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["ellanetworks core"],"affected":[{"vendor":"ellanetworks","product":"core","versions":[{"version":"< 1.10.0","status":"affected"}]}],"references":["https://github.com/ellanetworks/core/security/advisories/GHSA-qfxw-v8qx-vj3v"],"weaknesses":["CWE-358","CWE-863"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44473.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44473","state":"PUBLISHED","datePublished":"2026-05-27T15:16:05.261Z","dateUpdated":"2026-05-28T14:33:35.170Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-06T17:18:51.782Z"},"containers":{"cna":{"title":"Ella Core: UE Downlink Redirection via Forged PDUSessionResourceSetupResponse","descriptions":[{"lang":"en","value":"Ella Core is a 5G core designed for private networks. Prior to 1.10.0, a radio with a valid NG Setup can send a forged PDUSessionResourceSetupResponse carrying any UE's AMF-UE-NGAP-ID. Ella Core does not verify the message arrived on the SCTP association bound to that UE's logical NG-connection, then creates a GTP tunnel towards that radio. This vulnerability is fixed in 1.10.0."}],"affected":[{"vendor":"ellanetworks","product":"core","versions":[{"version":"< 1.10.0","status":"affected"}]}],"references":[{"url":"https://github.com/ellanetworks/core/security/advisories/GHSA-qfxw-v8qx-vj3v","name":"https://github.com/ellanetworks/core/security/advisories/GHSA-qfxw-v8qx-vj3v","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-358","lang":"en","description":"CWE-358: Improperly Implemented Security Check for Standard","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-27T15:16:05.261Z"},"source":{"advisory":"GHSA-qfxw-v8qx-vj3v","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-28T14:33:19.699329Z","id":"CVE-2026-44473","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-28T14:33:35.170Z"}}]}}}