CVE-2026-44473: CWE-358: Improperly Implemented Security Check for Standard in ellanetworks core
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.
AI Analysis
Technical Summary
The vulnerability in ellanetworks core (CVE-2026-44473) arises from a failure to properly verify the SCTP association for PDUSessionResourceSetupResponse messages. A malicious or compromised radio with a valid NG Setup can forge such a message carrying any UE's AMF-UE-NGAP-ID. Because the core does not check that the message is received on the SCTP association bound to the UE's logical NG-connection, it incorrectly creates a GTP tunnel towards the radio. This improper security check (CWE-358) and missing authorization (CWE-863) can lead to unauthorized resource allocation and potential denial of service. The issue affects versions before 1.10.0 and is resolved in 1.10.0.
Potential Impact
The vulnerability allows an attacker controlling a radio with a valid NG Setup to forge PDUSessionResourceSetupResponse messages for any UE, causing the core to create unauthorized GTP tunnels. This can lead to resource misuse and potentially disrupt service availability. Confidentiality and integrity impacts are low, but availability impact is high as indicated by the CVSS vector. No known exploits in the wild have been reported.
Mitigation Recommendations
The vulnerability is fixed in ellanetworks core version 1.10.0. Users should upgrade to version 1.10.0 or later to remediate this issue. Patch status is not explicitly confirmed beyond this fix version, so verify with the vendor for the latest advisory and updates. There is no indication that temporary mitigations or workarounds exist.
CVE-2026-44473: CWE-358: Improperly Implemented Security Check for Standard in ellanetworks core
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.
CVSS v3.1
Score 7.1high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in ellanetworks core (CVE-2026-44473) arises from a failure to properly verify the SCTP association for PDUSessionResourceSetupResponse messages. A malicious or compromised radio with a valid NG Setup can forge such a message carrying any UE's AMF-UE-NGAP-ID. Because the core does not check that the message is received on the SCTP association bound to the UE's logical NG-connection, it incorrectly creates a GTP tunnel towards the radio. This improper security check (CWE-358) and missing authorization (CWE-863) can lead to unauthorized resource allocation and potential denial of service. The issue affects versions before 1.10.0 and is resolved in 1.10.0.
Potential Impact
The vulnerability allows an attacker controlling a radio with a valid NG Setup to forge PDUSessionResourceSetupResponse messages for any UE, causing the core to create unauthorized GTP tunnels. This can lead to resource misuse and potentially disrupt service availability. Confidentiality and integrity impacts are low, but availability impact is high as indicated by the CVSS vector. No known exploits in the wild have been reported.
Mitigation Recommendations
The vulnerability is fixed in ellanetworks core version 1.10.0. Users should upgrade to version 1.10.0 or later to remediate this issue. Patch status is not explicitly confirmed beyond this fix version, so verify with the vendor for the latest advisory and updates. There is no indication that temporary mitigations or workarounds exist.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-06T17:18:51.782Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a171ce4e29bf47b50d1de3b
Added to database: 5/27/2026, 4:33:40 PM
Last enriched: 5/27/2026, 4:48:47 PM
Last updated: 5/29/2026, 3:12:44 PM
Views: 18
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