{"schemaVersion":3,"id":"CVE-2021-23033","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"On BIG-IP Advanced WAF and BIG-IP ASM version 16.x before 16.1.0x, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x, when a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","dates":{"published":"2021-09-14T17:15:34.000Z","modified":"2024-08-03T18:58:26.349Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00933,"percentile":0.60312,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00933},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00933,"percentile":0.60312}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00933,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00933,"percentile":nu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12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.3 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0","eol":null,"hubHref":"/vendor/f5/big-ip_advanced_web_application_firewall"},{"vendor":"f5","product":"big-ip_application_security_manager","name":"big-ip application security manager","label":"big-ip_application_security_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 12.1.0, ≤ 12.1.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.1.0, < 13.1.4.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 14.1.0, < 14.1.4.3","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.1.0, < 15.1.3.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 16.0.0, < 16.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.3 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 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