CVE-2026-106805

Full vulnerability record from the local CVENow database.

Description

A resource exhaustion issue exists in Free5GC v4.2.3 during PFCP Session Establishment failure handling. When the SMF does not receive a PFCP Session Establishment Response from the UPF, allocated UE IP address resources are not properly released. Repeated failed session establishment attempts can therefore exhaust the UE IP address pool, preventing new UEs from establishing PDU sessions and resulting in denial of service.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-02 17:17:33.617000

Last modified

2026-11-02 17:17:33.617000

View original CVE JSON

{
  "id": "CVE-2026-106805",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-02T17:17:33.617",
  "lastModified": "2026-11-02T17:17:33.617",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A resource exhaustion issue exists in Free5GC v4.2.3 during PFCP Session Establishment failure handling. When the SMF does not receive a PFCP Session Establishment Response from the UPF, allocated UE IP address resources are not properly released. Repeated failed session establishment attempts can therefore exhaust the UE IP address pool, preventing new UEs from establishing PDU sessions and resulting in denial of service."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://gist.github.com/hackeryounow/484987c16806c76dd53a8a87355dd0c2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/free5gc/free5gc/issues/1162",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/free5gc/smf/pull/236",
      "source": "[email protected]"
    }
  ]
}