{"id":"CVE-2025-48219","state":"PUBLISHED","title":"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","description":"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.","publishedAt":"2025-05-18T00:00:00.000Z","updatedAt":"2025-05-19T20:06:21.326Z","severity":{"score":3.5,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","source":"mitre"},"assigner":"mitre","products":["O2 UK O2"],"affected":[{"vendor":"O2 UK","product":"O2","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2025-05-17","versionType":"custom"}]}],"references":["https://mastdatabase.co.uk/blog/2025/05/o2-expose-customer-location-call-4g/","https://news.ycombinator.com/item?id=44014046","https://www.etsi.org/deliver/etsi_ts/124200_124299/124229/15.10.00_60/ts_124229v151000p.pdf","https://www.ispreview.co.uk/index.php/2025/05/o2-uk-fixes-volte-flaw-that-exposed-user-mobile-location-data.html"],"weaknesses":["CWE-201"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/48xxx/CVE-2025-48219.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-48219","state":"PUBLISHED","datePublished":"2025-05-18T00:00:00.000Z","dateUpdated":"2025-05-19T20:06:21.326Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2025-05-18T00:00:00.000Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"O2 UK","product":"O2","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2025-05-17","versionType":"custom"}]}],"references":[{"url":"https://mastdatabase.co.uk/blog/2025/05/o2-expose-customer-location-call-4g/"},{"url":"https://news.ycombinator.com/item?id=44014046"},{"url":"https://www.etsi.org/deliver/etsi_ts/124200_124299/124229/15.10.00_60/ts_124229v151000p.pdf"},{"url":"https://www.ispreview.co.uk/index.php/2025/05/o2-uk-fixes-volte-flaw-that-exposed-user-mobile-location-data.html"}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":3.5,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-201","description":"CWE-201 Insertion of Sensitive Information Into Sent Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2025-05-19T13:01:28.991Z"},"tags":["exclusively-hosted-service"],"x_generator":{"engine":"enrichogram 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-19T20:06:04.095969Z","id":"CVE-2025-48219","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-19T20:06:21.326Z"}}]}}}