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CVE-2026-33904

Estado: AnalizadaMedia (6.5)—

Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, a deadlock in the AMF's SCTP notification handler causes the entire AMF control plane to hang until the process is restarted. An attacker with access to the N2 interface can cause Ella Core to hang, resulting in a denial of service for all subscribers. Version 1.7.0 adds deferred Radio cleanup in serveConn SCTP server so that every connection exit path removes the radio. Remove the stale-entry scan from SCTP Notification handling.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Ellanetworks — Ella Core

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-33904",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-33904",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-31T14:06:26.825446Z"
        }
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    "cvssMetricV31": [
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "source": "security-advisories@github.com",
      "affectedData": [
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          "vendor": "ellanetworks",
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          "versions": [
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              "status": "affected",
              "version": "< 1.7.0"
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  "published": "2026-03-27T21:17:26.640",
  "references": [
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      "url": "https://github.com/ellanetworks/core/commit/999f606c5cae261471d9e3f063d7ecd1bd754076",
      "tags": [
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      "lang": "en",
      "value": "Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, a deadlock in the AMF's SCTP notification handler causes the entire AMF control plane to hang until the process is restarted. An attacker with access to the N2 interface can cause Ella Core to hang, resulting in a denial of service for all subscribers. Version 1.7.0 adds deferred Radio cleanup in serveConn SCTP server so that every connection exit path removes the radio. Remove the stale-entry scan from SCTP Notification handling."
    }
  ],
  "lastModified": "2026-06-17T10:38:17.510",
  "configurations": [
    {
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          "cpeMatch": [
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