CVE-2025-48219 LOW

CVE-2025-48219

Vendor O2 Uk
Product O2
Weakness CWE-201
Published May 18, 2025
Last update May 19, 2025
View on NVD All CVEs

CVSS base score

3.5/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 18, 2025 CVE published
May 19, 2025 Record updated