{"id":"CVE-2021-25424","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-25424","generatedAt":"2026-10-27T23:43:27.496Z","title":"Improper authentication vulnerability in Tizen bluetooth-frwk prior to Firmware update JUN-2021 Release allows bluetooth attacker to take over the user's bluetooth device without user awareness.","description":"Improper authentication vulnerability in Tizen bluetooth-frwk prior to Firmware update JUN-2021 Release allows bluetooth attacker to take over the user's bluetooth device without user awareness.","published":"2021-06-11T15:15:11.000Z","lastModified":"2026-06-17T03:42:03.000Z","status":"Modified","sourceIdentifier":"mobile.security@samsung.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":["samsung/galaxy watch active 2 firmware","samsung/galaxy watch active firmware","samsung/galaxy watch firmware","samsung/galaxy watch 3 firmware","samsung/gear s3 firmware","samsung/gear s2 firmware","samsung/gear s firmware","samsung/gear 2 firmware","samsung/gear 2 neo firmware"],"epss":{"score":0.00438,"percentile":0.3783,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=6","tags":["Vendor Advisory"],"source":"mobile.security@samsung.com"},{"url":"https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=6","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-25424","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."}