Vulnerability-Lookup

GHSA-F2F3-9CX3-WCMF

Vulnerability from github – Published: 2026-03-26 22:11 – Updated: 2026-03-27 21:51

Summary

Ella Core panics when processing a crafted NGAP LocationReport message

Details

Summary

Ella Core panics when processing a specially crafted NGAP LocationReport message.

Impact

An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers.

Fix

Add guards in NGAP Location Report handler.

Severity ?

6.5 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ellanetworks/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33903"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-26T22:11:20Z",
    "nvd_published_at": "2026-03-27T21:17:26Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nElla Core panics when processing a specially crafted NGAP LocationReport message.\n\n## Impact\n\nAn attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers.\n\n## Fix \n\nAdd guards in NGAP Location Report handler.",
  "id": "GHSA-f2f3-9cx3-wcmf",
  "modified": "2026-03-27T21:51:27Z",
  "published": "2026-03-26T22:11:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33903"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ellanetworks/core"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ellanetworks/core/releases/tag/v1.7.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ella Core panics when processing a crafted NGAP LocationReport message"
}

CVE-2026-33903 (GCVE-0-2026-33903)

Vulnerability from cvelistv5 – Published: 2026-03-27 20:52 – Updated: 2026-03-30 15:42

Title

Ella Core panics when processing a crafted NGAP LocationReport message

Summary

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing a specially crafted NGAP LocationReport message. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. Version 1.7.0 adds guards in NGAP Location Report handler.

Severity ?

6.5 (Medium)


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

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M

References

URL

Tags

	https://github.com/ellanetworks/core/security/adv…	x_refsource_CONFIRM
	https://github.com/ellanetworks/core/commit/ec77a…	x_refsource_MISC
	https://github.com/ellanetworks/core/releases/tag…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	ellanetworks	core	Affected: < 1.7.0

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33903",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T15:42:19.338459Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2026-03-30T15:42:36.950Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "core",
          "vendor": "ellanetworks",
          "versions": [
            {
              "status": "affected",
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing a specially crafted NGAP LocationReport message. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. Version 1.7.0 adds guards in NGAP Location Report handler."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2026-03-27T20:52:37.157Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
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          "name": "https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf",
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          ],
          "url": "https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf"
        },
        {
          "name": "https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8"
        },
        {
          "name": "https://github.com/ellanetworks/core/releases/tag/v1.7.0",
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        }
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      "source": {
        "advisory": "GHSA-f2f3-9cx3-wcmf",
        "discovery": "UNKNOWN"
      },
      "title": "Ella Core panics when processing a crafted NGAP LocationReport message"
    }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33903",
    "datePublished": "2026-03-27T20:52:37.157Z",
    "dateReserved": "2026-03-24T15:41:47.491Z",
    "dateUpdated": "2026-03-30T15:42:36.950Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-F2F3-9CX3-WCMF

Summary

Impact

Fix

CVE-2026-33903 (GCVE-0-2026-33903)

Tags

Sightings

Nomenclature