CVE-2025-11538
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).
Does this matter?
Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.39% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1327
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2025:21370
- https://access.redhat.com/errata/RHSA-2025:21371
- https://access.redhat.com/security/cve/CVE-2025-11538
- https://bugzilla.redhat.com/show_bug.cgi?id=2402622
- https://github.com/keycloak/keycloak/commit/9e98f2bf961f68853cea6fbec58b512ed8be7ca9
- https://github.com/keycloak/keycloak/pull/43574
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.