CVE-2025-14022
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
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.
Risk Assessment
An attacker could intercept and modify communications, potentially leading to theft of sensitive data, including financial information.
Recommendation
Update LINE client for iOS to version 15.4 or later to ensure proper certificate validation.
Other vulnerabilities in LINE client for iOS
See all- CVE-2026-3861Medium
LINE client for iOS versions prior to 26.3.0 contains a vulnerability in the in-app browser where opening a crafted web page can repeatedly trigger OS-level dialogs due to insufficient safeguards when handling arbitrary URL schemes, potentially causing the iOS device to become temporarily inoperable.
- CVE-2025-14023Low
LINE client for iOS prior to 15.19 allows UI spoofing due to inconsistencies between the navigation state and the in-app browser's user interface, which could create confusion about the trust context of displayed pages or interactive elements under specific conditions.
- CVE-2025-14021Medium
The in-app browser in LINE client for iOS versions prior to 14.14 is vulnerable to address bar spoofing, which could allow attackers to execute malicious JavaScript within iframes while displaying trusted URLs, enabling phishing attacks through overlaid malicious content.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS