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.
Metrics
Affected Vendors & Products
References
History
Mon, 19 May 2025 20:15:00 +0000
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Metrics |
ssvc
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Mon, 19 May 2025 13:15:00 +0000
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Description | O2 UK through 2025-05-17 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. | 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. |
References |
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Sun, 18 May 2025 14:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Description | O2 UK through 2025-05-17 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. | |
Weaknesses | CWE-201 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: mitre
Published: 2025-05-18T00:00:00.000Z
Updated: 2025-05-19T20:06:21.326Z
Reserved: 2025-05-18T00:00:00.000Z
Link: CVE-2025-48219

Updated: 2025-05-19T20:06:14.701Z

Status : Awaiting Analysis
Published: 2025-05-18T15:15:17.340
Modified: 2025-05-19T13:35:20.460
Link: CVE-2025-48219

No data.