{"id":"CVE-2021-20107","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-20107","generatedAt":"2026-10-27T21:18:20.830Z","title":"The vulnerability allows for unauthenticated kinetic effects and information disclosure on the faucets.","description":"There exists an unauthenticated BLE Interface in Sloan SmartFaucets including Optima EAF, Optima ETF/EBF, BASYS EFX, and Flushometers including SOLIS. The vulnerability allows for unauthenticated kinetic effects and information disclosure on the faucets. It is possible to use the Bluetooth Low Energy (BLE) connectivity to read and write to many BLE characteristics on the device. Some of these control the flow of water, the sensitivity of the sensors, and information about maintenance.","published":"2021-06-30T14:15:08.000Z","lastModified":"2026-06-17T03:33:17.000Z","status":"Modified","sourceIdentifier":"vulnreport@tenable.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-306"],"affected":["sloan/optima eaf-100 firmware","sloan/optima eaf-150 firmware","sloan/optima eaf-200 firmware","sloan/optima eaf-225 firmware","sloan/optima eaf-250 firmware","sloan/optima eaf-275 firmware","sloan/optima eaf-350 firmware","sloan/optima eaf-700 firmware","sloan/optima eaf-750 firmware","sloan/optima ebf-187 firmware","sloan/optima ebf-415 firmware","sloan/optima ebf-425 firmware","sloan/optima ebf-550 firmware","sloan/optima ebf-615 firmware","sloan/optima ebf-650 firmware","sloan/optima ebf-665 firmware","sloan/optima ebf-750 firmware","sloan/optima ebf-775 firmware","sloan/optima ebf-85 firmware","sloan/optima ebf-850 firmware","sloan/optima etf-610 firmware","sloan/optima etf-600 firmware","sloan/optima etf-410 firmware","sloan/optima etf-420 firmware","sloan/optima etf-500 firmware","sloan/optima etf-660 firmware","sloan/optima etf-700 firmware","sloan/optima etf-770 firmware","sloan/optima etf-80 firmware","sloan/optima etf-800 firmware","sloan/optima etf-880 firmware","sloan/basys efx-300 firmware","sloan/basys efx-350 firmware","sloan/basys efx-375 firmware","sloan/basys efx-377 firmware","sloan/basys efx-380 firmware","sloan/basys efx-600 firmware","sloan/basys efx-650 firmware","sloan/basys efx-675 firmware","sloan/basys efx-677 firmware","sloan/basys efx-680 firmware","sloan/basys efx-200 firmware","sloan/basys efx-250 firmware","sloan/basys efx-275 firmware","sloan/basys efx-277 firmware","sloan/basys efx-280 firmware","sloan/basys efx-100 firmware","sloan/basys efx-150 firmware","sloan/basys efx-175 firmware","sloan/basys efx-177 firmware","sloan/basys efx-180 firmware","sloan/basys efx-800 firmware","sloan/basys efx-850 firmware","sloan/solis 8111 firmware","sloan/solis 8186 firmware","sloan/solis ress-c firmware","sloan/solis ress-u firmware","sloan/solis 8152 firmware","sloan/solis 8195 firmware","sloan/solis 8115 firmware"],"epss":{"score":0.00543,"percentile":0.45359,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.54%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.tenable.com/security/research/tra-2021-26-0","tags":["Exploit","Third Party Advisory"],"source":"vulnreport@tenable.com"},{"url":"https://www.tenable.com/security/research/tra-2021-26-0","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-20107","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}