{"id":"CVE-2026-9509","state":"PUBLISHED","title":"Uncaught exception vulnerability in Suprema's BioStar","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.","publishedAt":"2026-05-29T12:11:07.142Z","updatedAt":"2026-05-29T13:33:02.406Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"INCIBE"},"assigner":"INCIBE","products":["Suprema BioStar 2 (server)"],"affected":[{"vendor":"Suprema","product":"BioStar 2 (server)","defaultStatus":"unaffected","versions":[{"version":"v2.9.11","status":"affected","versionType":"custom"},{"version":"v2.9.10","status":"affected"},{"version":"v2.9.8","status":"affected"}]}],"references":["https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar"],"weaknesses":["CWE-248"],"ingestedAt":"2026-10-29T20:13:52.441Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/9xxx/CVE-2026-9509.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9509","state":"PUBLISHED","datePublished":"2026-05-29T12:11:07.142Z","dateUpdated":"2026-05-29T13:33:02.406Z","assignerShortName":"INCIBE","assignerOrgId":"0cbda920-cd7f-484a-8e76-bf7f4b7f4516","dateReserved":"2026-05-25T13:58:49.181Z"},"containers":{"cna":{"title":"Uncaught exception vulnerability in Suprema's BioStar","descriptions":[{"lang":"en","value":"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":[{"vendor":"Suprema","product":"BioStar 2 (server)","defaultStatus":"unaffected","versions":[{"version":"v2.9.11","status":"affected","versionType":"custom"},{"version":"v2.9.10","status":"affected"},{"version":"v2.9.8","status":"affected"}]}],"references":[{"url":"https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-supremas-biostar","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-248","lang":"en","description":"CWE-248 Uncaught exception","type":"CWE"}]}],"providerMetadata":{"shortName":"INCIBE","orgId":"0cbda920-cd7f-484a-8e76-bf7f4b7f4516","dateUpdated":"2026-05-29T12:11:07.142Z"},"datePublic":"2026-05-29T10:00:00.000Z","solutions":[{"lang":"en","value":"The vulnerability has been fixed by the Suprema team. We recommend updating to the latest available version.","supportingMedia":[{"type":"text/html","base64":false,"value":"The vulnerability has been fixed by the Suprema team. We recommend updating to the latest available version."}]}],"credits":[{"lang":"en","value":"Jordi Garcia Ribera","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T13:32:47.977715Z","id":"CVE-2026-9509","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-29T13:33:02.406Z"}}]}}}