CVE-2026-37231

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "CFFCACEE-04A8-438A-A0BA-5C1D57943CF0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "FlexRIC v2.0.0 utiliza un contador uint16_t para la asignaci\u00f3n de xapp_id, pero almacena el valor en campos de mensaje uint32_t. Despu\u00e9s de m\u00e1s de 65.530 solicitudes E42_SETUP_REQUEST, el contador de 16 bits se desborda y produce xapp_ids duplicados. La iApp (puerto 36422) se bloquea al intentar registrar un ID duplicado en su estructura de datos interna. Un atacante remoto puede desencadenar esto al conectarse repetidamente y solicitar nuevos registros de xApp."}], "id": "CVE-2026-37231", "lastModified": "2026-07-22T07:10:00.107", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-37231", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-02T12:58:52.076501Z", "version": "2.0.3"}}]}, "published": "2026-06-01T19:16:33.517", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "url": "https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://gitlab.eurecom.fr/mosaic5g/flexric"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-191"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "flexric", "vendor": "mosaic5g"}], "created": "2026-06-01T20:30:17.071023+00:00", "updated": "2026-06-02T20:55:17.626802+00:00", "vendors": ["mosaic5g", "mosaic5g$PRODUCT$flexric"]}