Description
FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST with an empty ricEventTriggerDefinition field. The E42 layer decoder accepts this as valid, but the E2AP encoder asserts a non-empty constraint when forwarding the request. A remote unauthenticated attacker can crash the iApp process (port 36422) via SIGABRT by exploiting this cross-layer validation mismatch.
Published: 2026-06-01
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
First Time appeared Mosaic5g
Mosaic5g flexric
Vendors & Products Mosaic5g
Mosaic5g flexric

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

Type Values Removed Values Added
Title Remote Denial of Service via E42_RIC_SUBSCRIPTION_REQUEST Validation Mismatch in FlexRIC

Mon, 01 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Title Crash on Empty ricEventTriggerDefinition in FlexRIC
Weaknesses CWE-20

Mon, 01 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Title Crash on Empty ricEventTriggerDefinition in FlexRIC
Weaknesses CWE-20

Mon, 01 Jun 2026 19:15:00 +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 17:00:00 +0000

Type Values Removed Values Added
Description FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST with an empty ricEventTriggerDefinition field. The E42 layer decoder accepts this as valid, but the E2AP encoder asserts a non-empty constraint when forwarding the request. A remote unauthenticated attacker can crash the iApp process (port 36422) via SIGABRT by exploiting this cross-layer validation mismatch.
References

Subscriptions

Mosaic5g Flexric
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-01T18:48:24.429Z

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

Link: CVE-2026-37225

cve-icon Vulnrichment

Updated: 2026-06-01T18:48:18.543Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T17:16:58.880

Modified: 2026-06-01T21:16:42.500

Link: CVE-2026-37225

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T20:55:27Z

Weaknesses