PT-2026-44833 · Suprema · Biostar 2

Published 2026-05-29 · Updated 2026-05-29 · CVE-2026-9509

Mitre

CVSS v4.0

8.7

High

Base vector

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

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.

Fix

Weakness Enumeration

CWE-248

Related Identifiers

CVE-2026-9509

Affected Products

Biostar 2

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-9509 · Security Note
• https://incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar · Patch