{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-66274", "assignerOrgId": "2fd009eb-170a-4625-932b-17a53af1051f", "state": "PUBLISHED", "assignerShortName": "qnap", "dateReserved": "2025-11-26T09:25:37.832Z", "datePublished": "2026-02-11T12:15:49.265Z", "dateUpdated": "2026-06-09T06:17:38.342Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [ { "lessThan": "5.2.9.3410 build 20260214", "status": "affected", "version": "5.2.0", "versionType": "custom" } ] }, { "defaultStatus": "unaffected", "product": "QuTS hero", "vendor": "QNAP Systems Inc.", "versions": [ { "lessThan": "h5.2.9.3410 build 20260214", "status": "affected", "version": "h5.2.0", "versionType": "custom" }, { "lessThan": "h5.3.2.3354 build 20251225", "status": "affected", "version": "h5.3.0", "versionType": "custom" }, { "lessThan": "h6.0.0.3397 build 20260206", "status": "affected", "version": "?", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "coral" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "A NULL pointer dereference 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 launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following versions:
QTS 5.2.9.3410 build 20260214 and later
QuTS hero h5.2.9.3410 build 20260214 and later
QuTS hero h5.3.2.3354 build 20251225 and later
QuTS hero h6.0.0.3397 build 20260206 and later
" } ], "value": "A NULL pointer dereference 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 launch a denial-of-service (DoS) attack.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3410 build 20260214 and later\nQuTS hero h5.2.9.3410 build 20260214 and later\nQuTS hero h5.3.2.3354 build 20251225 and later\nQuTS hero h6.0.0.3397 build 20260206 and later" } ], "impacts": [ { "capecId": "CAPEC-129", "descriptions": [ { "lang": "en", "value": "CAPEC-129" } ] } ], "metrics": [ { "cvssV4_0": { "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.1, "baseSeverity": "MEDIUM", "exploitMaturity": "UNREPORTED", "privilegesRequired": "HIGH", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-476", "description": "CWE-476", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "2fd009eb-170a-4625-932b-17a53af1051f", "shortName": "qnap", "dateUpdated": "2026-06-09T06:17:38.342Z" }, "references": [ { "url": "https://www.qnap.com/en/security-advisory/qsa-26-08" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "We have already fixed the vulnerability in the following versions:
QTS 5.2.9.3410 build 20260214 and later
QuTS hero h5.2.9.3410 build 20260214 and later
QuTS hero h5.3.2.3354 build 20251225 and later
QuTS hero h6.0.0.3397 build 20260206 and later
" } ], "value": "We have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3410 build 20260214 and later\nQuTS hero h5.2.9.3410 build 20260214 and later\nQuTS hero h5.3.2.3354 build 20251225 and later\nQuTS hero h6.0.0.3397 build 20260206 and later" } ], "source": { "advisory": "QSA-26-08", "discovery": "EXTERNAL" }, "title": "QTS, QuTS hero", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-02-11T16:49:26.664498Z", "id": "CVE-2025-66274", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-11T16:49:33.097Z" } } ] } }