{"id":"CVE-2025-53593","state":"PUBLISHED","title":"QTS, QuTS hero","description":"A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later","publishedAt":"2026-01-02T14:56:24.161Z","updatedAt":"2026-01-05T20:39:01.408Z","severity":{"score":1.2,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U","source":"qnap"},"assigner":"qnap","products":["QNAP Systems Inc. QTS","QNAP Systems Inc. QuTS hero"],"affected":[{"vendor":"QNAP Systems Inc.","product":"QTS","defaultStatus":"unaffected","versions":[{"version":"5.2.x","status":"affected","lessThan":"5.2.7.3256 build 20250913","versionType":"custom"}]},{"vendor":"QNAP Systems Inc.","product":"QuTS hero","defaultStatus":"unaffected","versions":[{"version":"h5.2.x","status":"affected","lessThan":"h5.2.7.3256 build 20250913","versionType":"custom"},{"version":"h5.3.x","status":"affected","lessThan":"h5.3.1.3250 build 20250912","versionType":"custom"}]}],"references":["https://www.qnap.com/en/security-advisory/qsa-25-50"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:09:31.862Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/53xxx/CVE-2025-53593.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-53593","state":"PUBLISHED","datePublished":"2026-01-02T14:56:24.161Z","dateUpdated":"2026-01-05T20:39:01.408Z","assignerShortName":"qnap","assignerOrgId":"2fd009eb-170a-4625-932b-17a53af1051f","dateReserved":"2025-07-04T01:08:32.756Z"},"containers":{"cna":{"title":"QTS, QuTS hero","descriptions":[{"lang":"en","value":"A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later"}],"affected":[{"vendor":"QNAP Systems Inc.","product":"QTS","defaultStatus":"unaffected","versions":[{"version":"5.2.x","status":"affected","lessThan":"5.2.7.3256 build 20250913","versionType":"custom"}]},{"vendor":"QNAP Systems Inc.","product":"QuTS hero","defaultStatus":"unaffected","versions":[{"version":"h5.2.x","status":"affected","lessThan":"h5.2.7.3256 build 20250913","versionType":"custom"},{"version":"h5.3.x","status":"affected","lessThan":"h5.3.1.3250 build 20250912","versionType":"custom"}]}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-25-50"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":1.2,"baseSeverity":"LOW","exploitMaturity":"UNREPORTED","privilegesRequired":"HIGH","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:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"qnap","orgId":"2fd009eb-170a-4625-932b-17a53af1051f","dateUpdated":"2026-01-02T14:56:24.161Z"},"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:qnap_systems_inc.:qts:*:*:*:*:*:*:*:*","versionEndExcluding":"5.2.7.3256_build_20250913","versionStartIncluding":"5.2.x","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:a:qnap_systems_inc.:quts_hero:*:*:*:*:*:*:*:*","versionEndExcluding":"h5.2.7.3256_build_20250913","versionStartIncluding":"h5.2.x","vulnerable":true},{"criteria":"cpe:2.3:a:qnap_systems_inc.:quts_hero:*:*:*:*:*:*:*:*","versionEndExcluding":"h5.3.1.3250_build_20250912","versionStartIncluding":"h5.3.x","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"credits":[{"lang":"en","type":"finder","value":"coral"}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"We have already fixed the vulnerability in the following versions:<br>QTS 5.2.7.3256 build 20250913 and later<br>QuTS hero h5.2.7.3256 build 20250913 and later<br>QuTS hero h5.3.1.3250 build 20250912 and later<br>"}],"value":"We have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later"}],"source":{"advisory":"QSA-25-50","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-05T20:30:30.715497Z","id":"CVE-2025-53593","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-05T20:39:01.408Z"}}]}}}