CVE-2025-48219

{"id": "CVE-2025-48219", "cveTags": [{"tags": ["exclusively-hosted-service"], "sourceIdentifier": "cve@mitre.org"}], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 3.5, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.8}]}, "published": "2025-05-18T15:15:17.340", "references": [{"url": "https://mastdatabase.co.uk/blog/2025/05/o2-expose-customer-location-call-4g/", "source": "cve@mitre.org"}, {"url": "https://news.ycombinator.com/item?id=44014046", "source": "cve@mitre.org"}, {"url": "https://www.etsi.org/deliver/etsi_ts/124200_124299/124229/15.10.00_60/ts_124229v151000p.pdf", "source": "cve@mitre.org"}, {"url": "https://www.ispreview.co.uk/index.php/2025/05/o2-uk-fixes-volte-flaw-that-exposed-user-mobile-location-data.html", "source": "cve@mitre.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-201"}]}], "descriptions": [{"lang": "en", "value": "O2 UK before 2025-05-19 allows subscribers to determine the Cell ID of other subscribers by initiating an IMS (IP Multimedia Subsystem) call and then reading the utran-cell-id-3gpp field of a Cellular-Network-Info SIP header, aka an ECI (E-UTRAN Cell Identity) leak. The Cell ID might be usable to identify a cell location via crowdsourced data, and might correspond to a small physical area (e.g., if the called party is in a city centre). Removal of the Cellular-Network-Info header is mentioned in section 4.4.19 of ETSI TS 124 229."}, {"lang": "es", "value": "O2 UK, hasta el 17/05/2025, permite a los suscriptores determinar el ID de celda de otros suscriptores iniciando una llamada IMS (Subsistema Multimedia IP) y leyendo el campo utran-cell-id-3gpp de una cabecera SIP Cellular-Network-Info, tambi\u00e9n conocida como fuga de ECI (Identidad de Celda E-UTRAN). El ID de celda podr\u00eda utilizarse para identificar la ubicaci\u00f3n de una celda mediante datos de colaboraci\u00f3n abierta y podr\u00eda corresponder a un \u00e1rea f\u00edsica peque\u00f1a (por ejemplo, si el receptor de la llamada se encuentra en el centro de una ciudad). La eliminaci\u00f3n de la cabecera Cellular-Network-Info se menciona en la secci\u00f3n 4.4.19 de ETSI TS 124 229."}], "lastModified": "2025-05-19T13:35:20.460", "sourceIdentifier": "cve@mitre.org"}