CVE-2026-37231

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H                                    

Vulnerability 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.

Vulnerability Details

Published Date

June 01, 2026

Last Modified

June 03, 2026

CWE ID

CWE-191

Source

NVD

Vendor

mosaic5g

Product

flexric

External References

https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md
https://gitlab.eurecom.fr/mosaic5g/flexric

CVE-2026-37231

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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