CVE-2026-9509

An unhandled exception in Suprema BioStar 2 (Server), versions 2.9.8, 2.9.10, and 2.9.11, that allows an unauthenticated remote attacker to cause a denial of service (DoS) by sending HTTP POST requests to the ‘/api/migration’ endpoint. This request triggers a failure that halts critical processes, leaving the system offline until the services or server are manually restarted. As a result, access control readers cease to function, and potential failures may occur in third-party integrations. Since the exploit requires no privileges or user interaction and is trivial to automate, the impact on availability is high, and the effect extends to interconnected systems.

CVSS

No CVSS.

References

Link	Resource
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar

Configurations

No configuration.

History

29 May 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-29 13:16

Updated : 2026-05-29 15:39

NVD link : CVE-2026-9509

Mitre link : CVE-2026-9509

CVE.ORG link : CVE-2026-9509

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

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