CVE-2025-14020: LINE client for Android versions prior to 14.20 contains a UI spoofing vulnerability in the in-app browser where the…

CVE-2025-14020 · Severity: medium · CVSS 5.4 · Published 2025-12-15

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.

Technologies: Linecorp Line. Vendors: Linecorp.

Quick answers

Is CVE-2025-14020 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-14020 being exploited in the wild.
How severe is CVE-2025-14020?
Medium severity, with a CVSS score of 5.4, published 15 December 2025.
Which products and versions are affected?
Linecorp Line. The advisory does not name versions.
Is there a fix for CVE-2025-14020?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-14020?
Check whether you run Linecorp Line. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Linecorp Line

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