{"id":"CVE-2025-52856","state":"PUBLISHED","title":"VioStor","description":"An improper authentication vulnerability has been reported to affect VioStor. If a remote attacker, they can then exploit the vulnerability to compromise the security of the system.\n\nWe have already fixed the vulnerability in the following version:\nVioStor 5.1.6 build 20250621 and later","publishedAt":"2025-08-29T17:17:20.562Z","updatedAt":"2026-02-26T17:47:47.567Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"qnap"},"assigner":"qnap","products":["QNAP Systems Inc. VioStor"],"affected":[{"vendor":"QNAP Systems Inc.","product":"VioStor","defaultStatus":"unaffected","versions":[{"version":"5.1.0","status":"affected","lessThan":"5.1.6 build 20250621","versionType":"custom"}]}],"references":["https://www.qnap.com/en/security-advisory/qsa-25-29"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:09:31.862Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/52xxx/CVE-2025-52856.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-52856","state":"PUBLISHED","datePublished":"2025-08-29T17:17:20.562Z","dateUpdated":"2026-02-26T17:47:47.567Z","assignerShortName":"qnap","assignerOrgId":"2fd009eb-170a-4625-932b-17a53af1051f","dateReserved":"2025-06-20T05:51:57.033Z"},"containers":{"cna":{"title":"VioStor","descriptions":[{"lang":"en","value":"An improper authentication vulnerability has been reported to affect VioStor. If a remote attacker, they can then exploit the vulnerability to compromise the security of the system.\n\nWe have already fixed the vulnerability in the following version:\nVioStor 5.1.6 build 20250621 and later"}],"affected":[{"vendor":"QNAP Systems Inc.","product":"VioStor","defaultStatus":"unaffected","versions":[{"version":"5.1.0","status":"affected","lessThan":"5.1.6 build 20250621","versionType":"custom"}]}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-25-29"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"qnap","orgId":"2fd009eb-170a-4625-932b-17a53af1051f","dateUpdated":"2025-08-29T17:17:20.562Z"},"credits":[{"lang":"en","type":"finder","value":"360 的安全研究员 侯留洋（houliuyang@360.cn）"}],"impacts":[{"capecId":"CAPEC-115","descriptions":[{"lang":"en","value":"CAPEC-115"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"We have already fixed the vulnerability in the following version:<br>VioStor 5.1.6 build 20250621 and later<br>"}],"value":"We have already fixed the vulnerability in the following version:\nVioStor 5.1.6 build 20250621 and later"}],"source":{"advisory":"QSA-25-29","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2025-52856","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-08-30T03:55:41.446280Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T17:47:47.567Z"}}]}}}