CVE-2026-41539

{"id": "CVE-2026-41539", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41539", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-09T13:12:29.346617Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security@qnapsecurity.com.tw", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "UNREPORTED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security@qnapsecurity.com.tw", "affectedData": [{"vendor": "QNAP Systems Inc.", "product": "QTS", "versions": [{"status": "affected", "version": "5.2.0", "lessThan": "5.2.9.3492 build 20260507", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "QNAP Systems Inc.", "product": "QuTS hero", "versions": [{"status": "affected", "version": "h5.2.0", "lessThan": "h5.2.9.3499 build 20260514", "versionType": "custom"}, {"status": "affected", "version": "h5.3.0", "lessThan": "h5.3.4.3500 build 20260520", "versionType": "custom"}, {"status": "affected", "version": "?", "lessThan": "h6.0.0.3500 build 20260520", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-09T06:16:53.413", "references": [{"url": "https://www.qnap.com/en/security-advisory/qsa-26-10", "source": "security@qnapsecurity.com.tw"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@qnapsecurity.com.tw", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later"}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) ha sido reportada que afecta a varias versiones del sistema operativo QNAP. Los atacantes remotos pueden entonces explotar la vulnerabilidad para eludir mecanismos de seguridad o leer datos de la aplicaci\u00f3n.\n\nYa hemos corregido la vulnerabilidad en las siguientes versiones:\nQTS 5.2.9.3492 build 20260507 y posteriores\nQuTS hero h5.2.9.3499 build 20260514 y posteriores\nQuTS hero h5.3.4.3500 build 20260520 y posteriores\nQuTS hero h6.0.0.3500 build 20260520 y posteriores"}], "lastModified": "2026-07-23T08:10:00.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:qnap:qts:5.2.0.2737:build_20240417:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4026A4B-7AB4-48EA-971D-88DFDD3F01A7"}, {"criteria": "cpe:2.3:o:qnap:qts:5.2.0.2744:build_20240424:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1F3F99BB-0D68-4D74-92C8-59E24F96C50D"}, {"criteria": "cpe:2.3:o:qnap:qts:5.2.0.2782:build_20240601:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1DE63B4D-8E84-41D3-B1F3-04AE6040242B"}, {"criteria": 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