CVE-2017-12149: Red Hat JBoss Application Server Remote Code Execution Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2021-12-10. EPSS: 90.7% chance of exploitation in the next 30 days.

In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.

Affected products

• Red Hat JBoss Enterprise Application Platform: affected versions not specified; version 5.0.0 only; version 5.0.1 only; version 5.1.0 only; version 5.1.1 only; version 5.1.2 only; …

Published 2017-10-04. Last modified 2026-10-07.