CVE-2025-48219 – O2 UK IMS E-UTRAN Cell Identity Leak

CVE ID : CVE-2025-48219

Published : May 18, 2025, 3:15 p.m. | 1 hour, 51 minutes ago

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.

Severity: 3.5 | LOW

Visit the link for more details, such as CVSS details, affected products, timeline, and more…