# CVE-2025-11538

## Summary

- **CVE ID:** CVE-2025-11538
- **Severity:** MEDIUM
- **CVSS Score:** 6.8 (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-1327
- **Published:** Nov 13, 2025
- **Last Modified:** Mar 12, 2026

## Description

A vulnerability exists in Keycloak's server distribution where enabling debug mode (--debug <port>) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (0.0.0.0). This exposes the debug port to the local network, allowing an attacker on the same network segment to attach a remote debugger and achieve remote code execution within the Keycloak Java virtual machine.

## Affected Products

- Keycloak — keycloak (0)
- Red Hat — Red Hat build of Keycloak 26.4 (26.4.4-1)
- Red Hat — Red Hat build of Keycloak 26.4 (26.4-3)

## References

- [CNA](https://access.redhat.com/errata/RHSA-2025:21370)
- [CNA](https://access.redhat.com/errata/RHSA-2025:21371)
- [CNA](https://access.redhat.com/security/cve/CVE-2025-11538)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2402622)
- [CNA](https://github.com/keycloak/keycloak/commit/9e98f2bf961f68853cea6fbec58b512ed8be7ca9)
- [CNA](https://github.com/keycloak/keycloak/pull/43574)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.39%
- **EPSS Percentile:** 32.7

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._