{"schemaVersion":3,"id":"CVE-2025-68404","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A time-of-check time-of-use (toctou) race condition vulnerability has been reported to affect QuRouter. If exploited, the vulnerability could allow remote attackers to compromise the security of the system.\n\nWe have already fixed the vulnerability in the following version:\nQuRouter 2.6.4.001 and later","dates":{"published":"2026-10-15T06:58:27.256Z","modified":"2026-10-15T18:32:25.154Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00151,"percentile":0.0384,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-15T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00151,"percentile":0.0384}],"last30":[{"date":"2026-10-15T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00151,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00151,"percentile":0.0384}]},"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-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition","description":"The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/367.html"}],"affected":[{"vendor":"qnap systems inc.","product":"qurouter","name":"QuRouter","label":"qurouter","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.6.x, < 2.6.4.001","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.6.x, < 2.6.4.001","eol":null,"hubHref":"/vendor/qnap_systems_inc/qurouter"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.qnap.com/en/release-notes/qurouter/overview/2.7","label":"www.qnap.com/en/release-notes/qurouter/overview/2.7","hostname":"www.qnap.com","tags":["Release Notes"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-15T06:58:27.256Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-15T18:32:25.154Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T03:45:42.815Z","stale":false,"partial":false}}