Due to build misconfiguration in openssl dependency, LINE for Windows before 7.8 is vulnerable to DLL injection that could lead to privilege escalation.
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 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.
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.
An issue was discovered in the LINE jp.naver.line application 8.8.0 for iOS. The Passcode feature allows authentication bypass via runtime manipulation that forces a certain method to disable passcode authentication. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes iOS devices on which a jailbreak has occurred