Description
FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.
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 17:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*

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 15:45:00 +0000

Type Values Removed Values Added
Title Duplicate xApp ID Trigger Causes iApp Crash in FlexRIC
Weaknesses CWE-190
CWE-727

Tue, 02 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-191
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 20:45:00 +0000

Type Values Removed Values Added
Title Duplicate xApp ID Trigger Causes iApp Crash in FlexRIC
Weaknesses CWE-190
CWE-727

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

Type Values Removed Values Added
Description FlexRIC v2.0.0 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.
References

Subscriptions

Mosaic5g Flexric
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-02T12:58:56.612Z

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

Link: CVE-2026-37231

cve-icon Vulnrichment

Updated: 2026-06-02T12:58:47.639Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-01T19:16:33.517

Modified: 2026-06-03T17:16:15.743

Link: CVE-2026-37231

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T20:55:17Z

Weaknesses