CVE-2026-15562 Red Hat CVE debrief

Who should care

Defenders responsible for Red Hat JBoss Enterprise Application Platform 7.4.25 deployments, especially those exposed to untrusted networks, should assess their exposure to this vulnerability and prioritize patching.

Why it matters

Defenders should care about CVE-2026-15562 because it allows remote unauthenticated attackers to cause denial of service in Red Hat JBoss Enterprise Application Platform 7.4.25. The vulnerability requires verification of exposure, especially in deployments with untrusted network access. The impact is supported by the CVE record and NVD entry, but additional details on affected versions and remediation steps are limited.

• Denial of service via OOM errors
• Potential degradation of server-wide requests
• Need for verification of exposure and remediation

Technical summary

The vulnerability in EAP's jboss-remoting allows a remote unauthenticated attacker to cause OOM errors by completing an Upgrade: jboss-remoting handshake on ports 8080, 9990, or 4447, leading to denial of service. This affects Red Hat JBoss Enterprise Application Platform 7.4.25. The CVE record and NVD entry provide details on the vulnerability, including its description and potential impact. However, additional information on affected versions and remediation steps is limited. Defenders should prioritize verifying exposure, especially if the platform is exposed to untrusted networks.

Defensive priority

Defenders should prioritize verifying exposure of Red Hat JBoss Enterprise Application Platform 7.4.25 to this vulnerability, especially if the platform is exposed to untrusted networks.

Recommended defensive actions

• Verify exposure of Red Hat JBoss Enterprise Application Platform 7.4.25 to this vulnerability
• Assess network exposure of ports 8080, 9990, and 4447
• Review and apply available security patches from Red Hat
• Implement compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Review vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description and potential impact. However, additional information on affected versions and remediation steps is limited.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.