CVE-2023-5554: Linecorp Line

Critical severity, CVSS 9.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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

Affected products

• Linecorp Line: before 13.16.0 (fixed in 13.16.0)

Published 2023-10-12. Last modified 2026-06-17.