Home

Description

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.

PUBLISHED Reserved 2026-05-25 | Published 2026-05-29 | Updated 2026-05-29 | Assigner INCIBE




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-248 Uncaught exception

Product status

Default status
unaffected

v2.9.11 (custom)
affected

v2.9.10
affected

v2.9.8
affected

Credits

Jordi Garcia Ribera finder

References

www.incibe.es/...o/multiple-vulnerabilities-supremas-biostar patch

cve.org (CVE-2026-9509)

nvd.nist.gov (CVE-2026-9509)

Download JSON