CVE-2025-14020: Linecorp Line

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

LINE client for Android versions prior to 14.20 contains a UI spoofing vulnerability in the in-app browser where the full-screen security Toast notification is not properly re-displayed when users return from another application, potentially allowing attackers to conduct phishing attacks by impersonating legitimate interfaces.

Affected products

• Linecorp Line: before 14.20.0 (fixed in 14.20.0)

Published 2025-12-15. Last modified 2026-10-07.