Unauthenticated remote code execution in widely used Red Hat JBoss EAP (openjdk-orb JDKBridge) allowing arbitrary class loading before EJB security—enterprise-wide impact.
CVE-2026-84725
Unauthenticated RCE via remote classloading in JBoss EAP openjdk-orb (:3528)
Is CVE-2026-84725 being exploited?
Not confirmed. CVE-2026-84725 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-84725?
CVE-2026-84725 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-84725?
Yes. A fix has been recorded for CVE-2026-84725. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-84725 affect?
CVE-2026-84725 affects Red Hat JBoss EAP (openjdk-orb JDKBridge), EAP instances started with -secmgr, Servers exposing CDR service on port 3528. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84725?
Apply Red Hat patch immediately; block/limit port 3528; isolate affected EAP hosts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution: attacker can load/instantiate arbitrary classes via CDR codebase URL during unmarshalling, executing code in the server JVM before EJB checks.
Immediate action required