CVE-2025-11419
HIGH EPSS 46.8%
Published Dec 23, 20256mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
Published Dec 23, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago
Description
A flaw was found in Keycloak. This vulnerability allows an unauthenticated remote attacker to cause a denial of service (DoS) by repeatedly initiating TLS 1.2 client-initiated renegotiation requests to exhaust server CPU resources, making the service unavailable.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
46.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-770
References 8
- access.redhat.com https://access.redhat.com/errata/RHSA-2025:18254
- access.redhat.com https://access.redhat.com/errata/RHSA-2025:18255
- access.redhat.com https://access.redhat.com/errata/RHSA-2025:18889
- access.redhat.com https://access.redhat.com/errata/RHSA-2025:18890
- access.redhat.com https://access.redhat.com/security/cve/CVE-2025-11419
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2402142
- github.com https://github.com/keycloak/keycloak/discussions/25209
- github.com https://github.com/keycloak/keycloak/issues/43020
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.