CVE-2021-42392: Debian Linux

Critical severity, CVSS 9.8. EPSS: 83.2% chance of exploitation in the next 30 days.

The org.h2.util.JdbcUtils.getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. This can be exploited through various attack vectors, most notably through the H2 Console which leads to unauthenticated remote code execution.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• h2database h2: from 1.1.000, up to and including 2.0.204
• Oracle Communications Cloud Native Core Policy: version 1.15.0 only

Published 2022-01-10. Last modified 2026-06-17.