Cyber Resilience

CVE-2023-6544

Medium

Published: 25 April 2024

Published
25 April 2024
Modified
15 April 2026
KEV Added
Patch
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0131 80.2th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-6544 is a medium-severity Permissive Regular Expression (CWE-625) vulnerability. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 19.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malicious user with enough information about the environment could jeopardize an…

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environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References