{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26239","assignerOrgId":"2fd009eb-170a-4625-932b-17a53af1051f","state":"PUBLISHED","assignerShortName":"qnap","dateReserved":"2026-02-12T02:21:35.483Z","datePublished":"2026-06-10T03:15:18.196Z","dateUpdated":"2026-06-17T01:47:04.260Z"},"containers":{"cna":{"providerMetadata":{"orgId":"2fd009eb-170a-4625-932b-17a53af1051f","shortName":"qnap","dateUpdated":"2026-06-17T01:47:04.260Z"},"title":"File Station 5","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-121","description":"CWE-121","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-47","descriptions":[{"lang":"en","value":"CAPEC-47"}]}],"affected":[{"vendor":"QNAP Systems Inc.","product":"File Station 5","versions":[{"status":"affected","version":"5.5.0","lessThan":"5.5.6.5208","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","supportingMedia":[{"type":"text/html","base64":false,"value":"A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.<br><br>We have already fixed the vulnerability in the following version:<br>File Station 5 5.5.6.5208 and later<br>"}]}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-26-10"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U"}}],"solutions":[{"lang":"en","value":"We have already fixed the vulnerability in the following version:\nFile Station 5 5.5.6.5208 and later","supportingMedia":[{"type":"text/html","base64":false,"value":"We have already fixed the vulnerability in the following version:<br>File Station 5 5.5.6.5208 and later<br>"}]}],"credits":[{"lang":"en","value":"Moritz Abrell, SySS GmbH","type":"finder"}],"source":{"advisory":"QSA-26-37","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T15:10:18.381806Z","id":"CVE-2026-26239","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-10T15:14:02.745Z"}}]}}