{"schemaVersion":3,"id":"CVE-2021-44051","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A command injection vulnerability has been reported to affect QNAP NAS running QuTScloud, QuTS hero and QTS. If exploited, this vulnerability allows remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero and QTS: QuTScloud c5.0.1.1949 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 5.0.0.1986 build 20220324 and later","dates":{"published":"2022-05-05T16:50:20.575Z","modified":"2024-09-16T17:43:45.081Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01659,"percentile":0.76321,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":-0.016000000000000042,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01675},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01659,"percentile":0.76321}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01675,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01659,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01659,"percentile":0.76321}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","description":"The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/77.html"}],"affected":[{"vendor":"qnap systems inc.","product":"qts","name":"QTS","label":"qts","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 5.0.0.1986 build 20220324","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 5.0.0.1986 build 20220324","eol":null,"hubHref":"/vendor/qnap_systems_inc/qts"},{"vendor":"qnap systems inc.","product":"quts hero","name":"QuTS hero","label":"quts hero","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < h5.0.0.1986 build 20220324","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < h5.0.0.1986 build 20220324","eol":null,"hubHref":"/vendor/qnap_systems_inc/quts_hero"},{"vendor":"qnap systems inc.","product":"qutscloud","name":"QuTScloud","label":"qutscloud","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < c5.0.1.1949","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < c5.0.1.1949","eol":null,"hubHref":"/vendor/qnap_systems_inc/qutscloud"},{"vendor":"qnap","product":"qts","name":"QTS","label":"qts","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ 5.0.0.1716, < 5.0.0.1986","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.3.3.0174, < 4.3.3.1945","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.3.4.0899, < 4.3.4.1976","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.3.6.0895, < 4.3.6.1965","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.4.0.0883, < 4.5.4.1991","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20170517","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20190322","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20190730","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20190921","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20191107","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20200109","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20200421","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20200611","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20200821","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20210327","noFixRecorded":false,"fixedIn":null},{"text":"4.2.6:build_20211215","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.0.0.1716, < 5.0.0.1986 | ≥ 4.3.3.0174, < 4.3.3.1945 | ≥ 4.3.4.0899, < 4.3.4.1976 | ≥ 4.3.6.0895, < 4.3.6.1965 | ≥ 4.4.0.0883, < 4.5.4.1991 | 4.2.6:build_20170517 | 4.2.6:build_20190322 | 4.2.6:build_20190730 | 4.2.6:build_20190921 | 4.2.6:build_20191107 | 4.2.6:build_20200109 | 4.2.6:build_20200421 | 4.2.6:build_20200611 | 4.2.6:build_20200821 | 4.2.6:build_20210327 | 4.2.6:build_20211215","eol":null,"hubHref":"/vendor/qnap/qts"},{"vendor":"qnap","product":"quts_hero","name":"quts hero","label":"quts_hero","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< h4.5.4.1771","noFixRecorded":false,"fixedIn":null},{"text":"≥ h5.0.0.1772, < h5.0.0.1986","noFixRecorded":false,"fixedIn":null}],"versionsText":"< h4.5.4.1771 | ≥ h5.0.0.1772, < h5.0.0.1986","eol":null,"hubHref":"/vendor/qnap/quts_hero"},{"vendor":"qnap","product":"qutscloud","name":"qutscloud","label":"qutscloud","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< c5.0.1.1998","noFixRecorded":false,"fixedIn":null}],"versionsText":"< c5.0.1.1998","eol":null,"hubHref":"/vendor/qnap/qutscloud"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-22-16","label":"www.qnap.com/en/security-advisory/qsa-22-16","hostname":"www.qnap.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-05-05T16:50:20.575Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T17:43:45.081Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:39:15.654Z","stale":false,"partial":false}}