CVE-2026-9509 — Uncaught exception vulnerability in Suprema's BioStar

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Suprema / BioStar 2 (server)	affected v2.9.11; affected v2.9.10; affected v2.9.8

CWE

CWE-248

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.