Ella Core: UE Downlink Redirection via Forged PDUSessionResourceSetupResponse_CVE-2026-44473

7.1 / 10

HIGH

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

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.

Basic Information

ID CVE-2026-44473

Source GitHub_M

Published May 27, 2026 at 15:16

Affected Product

Vendor ellanetworks

Product core

Version < 1.10.0

Affected Versions ellanetworks core < 1.10.0

CWE Classification

CWE-358 CWE-863

References

github.com /ellanetworks/core/security/advisories/GHSA-qfxw-v8qx-vj3v

{
    "lastseen": "",
    "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.",
    "published": "2026-05-27T15:16:05.261Z",
    "modified": "2026-05-27T15:16:05.261Z",
    "type": "cve",
    "title": "Ella Core: UE Downlink Redirection via Forged PDUSessionResourceSetupResponse",
    "source": "GitHub_M",
    "references": "https://github.com/ellanetworks/core/security/advisories/GHSA-qfxw-v8qx-vj3v",
    "id": "CVE-2026-44473",
    "bulletinFamily": "",
    "cwe": [
        "CWE-358",
        "CWE-863"
    ],
    "cvelist": null,
    "sourceData": "ellanetworks core < 1.10.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
        "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": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "core",
    "version": "< 1.10.0",
    "vendor": "ellanetworks",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}