Descriptions

LINE client for iOS prior to 15.4 allows man-in-the-middle attacks due to improper SSL/TLS certificate validation in an integrated financial SDK. The SDK interfered with the application’s network processing, causing server certificate verification to be disabled for a significant portion of network traffic, which could allow a network-adjacent attacker to intercept or modify encrypted communications.

Severity

  • CVSSv3.1 Score: 7.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L)

Affected Versions

  • LINE client for iOS before 15.4

Fix

  • LINE should be updated to latest version.

Reference

  • https://www.cve.org/CVERecord?id=CVE-2025-14022

Updated: