FlexRIC v2.0.0 trusts the xapp_id field from E42 message payloads without binding it to the sender's SCTP association. The validation function valid_xapp_id() only checks that the value is within the assigned range. A remote unauthenticated attacker can impersonate any xApp by specifying their xapp_id in requests sent to the iApp (port 36422), causing responses to be misrouted to the victim xApp. This can crash the victim xApp, the RIC, or the iApp itself through state inconsistencies in the red-black tree data structure.
History

Tue, 02 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title Remote xApp ID Validation Failure in FlexRIC v2.0.0
Weaknesses CWE-20

Tue, 02 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Mon, 01 Jun 2026 21:15:00 +0000

Type Values Removed Values Added
Title Remote xApp ID Validation Failure in FlexRIC v2.0.0
Weaknesses CWE-20

Mon, 01 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
Description FlexRIC v2.0.0 trusts the xapp_id field from E42 message payloads without binding it to the sender's SCTP association. The validation function valid_xapp_id() only checks that the value is within the assigned range. A remote unauthenticated attacker can impersonate any xApp by specifying their xapp_id in requests sent to the iApp (port 36422), causing responses to be misrouted to the victim xApp. This can crash the victim xApp, the RIC, or the iApp itself through state inconsistencies in the red-black tree data structure.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-02T15:52:25.219Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-37235

cve-icon Vulnrichment

Updated: 2026-06-02T15:52:21.363Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-06-01T19:16:33.850

Modified: 2026-06-02T17:16:28.553

Link: CVE-2026-37235

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T19:00:13Z