{"schemaVersion":3,"id":"CVE-2018-19957","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability involving insufficient HTTP security headers has been reported to affect QNAP NAS running QTS, QuTS hero, and QuTScloud. This vulnerability allows remote attackers to launch privacy and security attacks. We have already fixed this vulnerability in the following versions: QTS 4.5.4.1715 build 20210630 and later QuTS hero h4.5.4.1771 build 20210825 and later QuTScloud c4.5.6.1755 build 20210809 and later","dates":{"published":"2021-09-10T04:00:18.472Z","modified":"2024-09-17T02:57:44.608Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.1,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00707,"percentile":0.52629,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00707},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00707,"percentile":0.52629}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00707,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00707,"percentile":0.52629}]},"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-1021","name":"Improper Restriction of Rendered UI Layers or Frames","description":"The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/1021.html"}],"affected":[{"vendor":"qnap systems inc.","product":"qts","name":"QTS","label":"qts","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 4.5.4.1715 build 20210630","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 4.5.4.1715 build 20210630","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, < h4.5.4.1771 build 20210825","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < h4.5.4.1771 build 20210825","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, < c4.5.6.1755 build 20210809","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < c4.5.6.1755 build 20210809","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":"< 4.5.4.1715","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.5.4.1715","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}],"versionsText":"< h4.5.4.1771","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":"< c4.5.6.1755","noFixRecorded":false,"fixedIn":null}],"versionsText":"< c4.5.6.1755","eol":null,"hubHref":"/vendor/qnap/qutscloud"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-21-03","label":"www.qnap.com/en/security-advisory/qsa-21-03","hostname":"www.qnap.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-09-10T04:00:18.472Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-17T02:57:44.608Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":25,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T17:58:38.814Z","stale":false,"partial":false}}