Linecorp LINE 4.3.1 for Mac OS X any version

Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.

LINE for Windows before 4.8.3 allows man-in-the-middle attackers to execute arbitrary code.

Integer overflow vulnerability in LINE(Android) from 4.4.0 to the version before 9.15.1 allows remote attackers to cause a denial of service (DoS) condition or execute arbitrary code via a specially crafted image.

Untrusted search path vulnerability in LINE for Windows versions before 5.8.0 allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Due to build misconfiguration in openssl dependency, LINE for Windows before 7.8 is vulnerable to DLL injection that could lead to privilege escalation.

LINE for Windows 6.2.1.2289 and before allows arbitrary code execution via malicious DLL injection.

Untrusted search path vulnerability in LINE and LINE Installer 4.7.0 and earlier on Windows allows local users to gain privileges via a Trojan horse DLL in an unspecified directory.

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.

LINE client for iOS before 11.15.0 might expose authentication information for a certain service to external entities under certain conditions. This is usually impossible, but in combination with a server-side bug, attackers could get this information.

LINE client for iOS before 12.17.0 might be crashed by sharing an invalid shared key of e2ee in group chat.

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.

LINE client for iOS before 10.16.3 allows cross site script with specific header in WebView.

The in-app browser of LINE client for iOS versions below 14.9.0 contains a Universal XSS (UXSS) vulnerability. This vulnerability allows for cross-site scripting (XSS) where arbitrary JavaScript can be executed in the top frame from an embedded iframe on any displayed web site within the in-app browser. The in-app browser is usually opened by tapping on URLs contained in chat messages, and for the attack to be successful, the victim must trigger a click event on a malicious iframe. If an iframe embedded in any website can be controlled by an attacker, this vulnerability could be exploited to capture or alter content displayed in the top frame, as well as user session information. This vulnerability affects LINE client for iOS versions below 14.9.0 and does not affect other LINE clients such as LINE client for Android. Please update LINE client for iOS to version 14.9.0 or higher.

LINE for iOS version 7.1.3 to 7.1.5 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

LINE 4.3.0.724 and earlier on Windows and 4.3.1 and earlier on OS X allows remote authenticated users to cause a denial of service (application crash) via a crafted post that is mishandled when displaying a Timeline.

Due to the lack of media file checks before rendering, it was possible for an attacker to cause abnormal CPU consumption for message recipient by sending specially crafted gif image in LINE for Windows before 7.4.

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.

LINE client for iOS 10.21.3 and before allows address bar spoofing due to inappropriate address handling.

LINE client for Android versions from 13.8 to 15.5 is vulnerable to UI spoofing in the in-app browser where a specific layout could obscure the full-screen warning prompt, potentially allowing attackers to conduct phishing attacks.

LINE 3.2.1.83 and earlier on Windows and 3.2.1 and earlier on OS X does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

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.

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.