CVE-2025-14020

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-15

Last updated on: 2025-12-18

Assigner: LINE Corporation

Description

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-12-15

Last Modified

2025-12-18

Generated

2026-07-06

AI Q&A

2025-12-15

EPSS Evaluated

2026-07-05

NVD

CVE-2025-14020

EUVD

EUVD-2025-203348

Affected Vendors & Products

Vendor	Product	Version / Range
linecorp	line	to 14.20.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-451	The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

Attack-Flow Graph

Executive Summary

This vulnerability is a UI spoofing issue in the LINE client for Android versions before 14.20. It occurs in the in-app browser where the full-screen security Toast notification does not properly reappear when users switch back from another application. This flaw could allow attackers to trick users by displaying fake interfaces that look legitimate.

Impact Analysis

The vulnerability can impact you by enabling attackers to perform phishing attacks through impersonation of legitimate interfaces within the app. This could lead to users being deceived into providing sensitive information or performing unintended actions.

Mitigation Strategies

To mitigate this vulnerability, update the LINE client for Android to version 14.20 or later where the UI spoofing issue in the in-app browser has been fixed. Avoid using vulnerable versions and be cautious when interacting with in-app browser content, especially after switching between applications.

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