CVE-2026-37223

Assertion Failure in FlexRIC 2.0.0 Allows Remote Unauthenticated Crash

Published Jun 1, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
FlexRIC v2.0.0 contains a reachable assertion in the iApp message dispatcher. The dispatcher validates incoming E2AP messages against a 9-entry whitelist using assert(). A remote unauthenticated attacker can send any decodable E2AP PDU with a message type not in the whitelist to crash the iApp process (port 36422) via SIGABRT. Since iApp and the near-RT RIC share one process, this terminates the entire RIC service and disconnects all E2 Nodes and xApps.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mosaic5g
Mosaic5g flexric
Vendors & Products Mosaic5g
Mosaic5g flexric
Type Values Removed Values Added
Title Assertion Failure in FlexRIC 2.0.0 Allows Remote Unauthenticated Crash
Type Values Removed Values Added
Title Reachable Assertion in FlexRIC iApp Leads to Remote Crash Disrupting RIC Services
Weaknesses CWE-398
Type Values Removed Values Added
Title Reachable Assertion in FlexRIC iApp Leads to Remote Crash Disrupting RIC Services
Weaknesses CWE-398
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'}

Type Values Removed Values Added
Description FlexRIC v2.0.0 contains a reachable assertion in the iApp message dispatcher. The dispatcher validates incoming E2AP messages against a 9-entry whitelist using assert(). A remote unauthenticated attacker can send any decodable E2AP PDU with a message type not in the whitelist to crash the iApp process (port 36422) via SIGABRT. Since iApp and the near-RT RIC share one process, this terminates the entire RIC service and disconnects all E2 Nodes and xApps.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 1, 2026, 6:51 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Jun 1, 2026, 5:16 PM
Modified
Jul 22, 2026, 7:10 AM