Vulnerability in Red Hat Jboss Enterprise Application Platform 7

CVE-2026-15564

Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15564?
CVE-2026-15564 is a high-severity vulnerability in Red Hat Jboss Enterprise Application Platform 7, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.4/10. Published 2026-10-29.
How severe is CVE-2026-15564?
High severity. CVSS v3 base score is 7.4 out of 10.