FlexRIC v2.0.0 crashes when an SCTP association is closed before an E2_SETUP_REQUEST is sent. The near-RT RIC assumes a mapping between SCTP association and E2 node always exists in the cleanup path and enforces this via assert(). A remote unauthenticated attacker can crash the near-RT RIC (port 36421) by simply completing an SCTP handshake and immediately disconnecting, without sending any E2AP message.
History

Mon, 01 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title FlexRIC Near‑RT RIC Crash and Denial of Service via SCTP Handshake
Weaknesses CWE-682

Mon, 01 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-617
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'}

ssvc

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


Mon, 01 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Title FlexRIC Near‑RT RIC Crash and Denial of Service via SCTP Handshake
Weaknesses CWE-682

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

Type Values Removed Values Added
Description FlexRIC v2.0.0 crashes when an SCTP association is closed before an E2_SETUP_REQUEST is sent. The near-RT RIC assumes a mapping between SCTP association and E2 node always exists in the cleanup path and enforces this via assert(). A remote unauthenticated attacker can crash the near-RT RIC (port 36421) by simply completing an SCTP handshake and immediately disconnecting, without sending any E2AP message.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-01T16:46:53.924Z

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

Link: CVE-2026-37220

cve-icon Vulnrichment

Updated: 2026-06-01T16:45:47.834Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T15:16:34.163

Modified: 2026-06-01T18:09:03.137

Link: CVE-2026-37220

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T19:00:14Z