How severe is CVE-2025-12150?

CVE-2025-12150 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-12150 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-12150?

CVE-2025-12150 primarily affects Redhat Build Of Keycloak. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-12150?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-12150 have an EU (EUVD) identifier?

Yes. CVE-2025-12150 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208135.

When was CVE-2025-12150 published?

CVE-2025-12150 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2025-12150

CVE-2025-12150 is a low-severity vulnerability in Redhat Build Of Keycloak with a CVSS 3.x base score of 3.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208135
Weakness: CWE-347
Affected product: Redhat Build Of Keycloak
Published: 2026-02-27
Last modified: 2026-06-17

Description

A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration.

Frequently asked questions

What is CVE-2025-12150?: A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration.
How severe is CVE-2025-12150?: CVE-2025-12150 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-12150 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-12150?: CVE-2025-12150 primarily affects Redhat Build Of Keycloak. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-12150?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-12150 have an EU (EUVD) identifier?: Yes. CVE-2025-12150 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208135.
When was CVE-2025-12150 published?: CVE-2025-12150 was published on 2026-02-27 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:keycloak:24.0.2:*:*:*:*:*:*:*

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