CVE-2019-5954: Jreast Jr East Japan

Critical severity, CVSS 9.1. EPSS: 1.9% chance of exploitation in the next 30 days.

JR East Japan train operation information push notification App for Android version 1.2.4 and earlier allows remote attackers to bypass access restriction to obtain or alter the user's registered information via unspecified vectors.

Affected products

• Jreast Jr East Japan: up to and including 1.2.4

Published 2019-05-17. Last modified 2026-06-17.