{"id":"CVE-2026-79378","title":"An issue in the btm_acl_handle() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a Denial of Service (DoS) via sending a crafted L2CAP packet.","summary":"An issue in the btm_acl_handle() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a Denial of Service (DoS) via sending a crafted L2CAP packet.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"published":"2026-09-08","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:04:24.933","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-79378","references":[{"url":"http://bes2300.com","label":"cve@mitre.org"},{"url":"http://bestechnic.com","label":"cve@mitre.org"},{"url":"https://www.bestechnic.com/CVE-2026-79376.pdf","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-09T14:54:43.638384Z"},"ingestedAt":"2026-09-08T15:33:26.985Z","epss":0.00432,"epssPercentile":0.36846,"slug":"CVE-2026-79378","body":"## Overview\n\nAn issue in the btm_acl_handle() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a Denial of Service (DoS) via sending a crafted L2CAP packet.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":201961,"id":"CVE-2026-79378","ts":1789399993316,"field":"cvss","old":null,"new":"7.5"},{"seq":201960,"id":"CVE-2026-79378","ts":1789399993316,"field":"severity","old":"none","new":"high"},{"seq":200688,"id":"CVE-2026-79378","ts":1789397585424,"field":"cvss","old":"7.5","new":null},{"seq":200687,"id":"CVE-2026-79378","ts":1789397585424,"field":"severity","old":"high","new":"none"},{"seq":199392,"id":"CVE-2026-79378","ts":1789395475497,"field":"cvss","old":null,"new":"7.5"},{"seq":199391,"id":"CVE-2026-79378","ts":1789395475497,"field":"severity","old":"none","new":"high"},{"seq":198637,"id":"CVE-2026-79378","ts":1789392188141,"field":"cvss","old":"7.5","new":null},{"seq":198636,"id":"CVE-2026-79378","ts":1789392188141,"field":"severity","old":"high","new":"none"},{"seq":196968,"id":"CVE-2026-79378","ts":1789384273127,"field":"cvss","old":null,"new":"7.5"},{"seq":196967,"id":"CVE-2026-79378","ts":1789384273127,"field":"severity","old":"none","new":"high"},{"seq":194099,"id":"CVE-2026-79378","ts":1789378693875,"field":"cvss","old":"7.5","new":null},{"seq":194098,"id":"CVE-2026-79378","ts":1789378693875,"field":"severity","old":"high","new":"none"},{"seq":192886,"id":"CVE-2026-79378","ts":1789376494400,"field":"cvss","old":null,"new":"7.5"},{"seq":192885,"id":"CVE-2026-79378","ts":1789376494400,"field":"severity","old":"none","new":"high"},{"seq":191673,"id":"CVE-2026-79378","ts":1789373590332,"field":"cvss","old":"7.5","new":null},{"seq":191672,"id":"CVE-2026-79378","ts":1789373590332,"field":"severity","old":"high","new":"none"},{"seq":190458,"id":"CVE-2026-79378","ts":1789369449495,"field":"cvss","old":null,"new":"7.5"},{"seq":190457,"id":"CVE-2026-79378","ts":1789369449495,"field":"severity","old":"none","new":"high"},{"seq":189245,"id":"CVE-2026-79378","ts":1789368373373,"field":"cvss","old":"7.5","new":null},{"seq":189244,"id":"CVE-2026-79378","ts":1789368373373,"field":"severity","old":"high","new":"none"},{"seq":188028,"id":"CVE-2026-79378","ts":1789365211471,"field":"cvss","old":null,"new":"7.5"},{"seq":188027,"id":"CVE-2026-79378","ts":1789365211471,"field":"severity","old":"none","new":"high"},{"seq":186815,"id":"CVE-2026-79378","ts":1789363454898,"field":"cvss","old":"7.5","new":null},{"seq":186814,"id":"CVE-2026-79378","ts":1789363454898,"field":"severity","old":"high","new":"none"},{"seq":185601,"id":"CVE-2026-79378","ts":1789361195197,"field":"cvss","old":null,"new":"7.5"},{"seq":185600,"id":"CVE-2026-79378","ts":1789361195197,"field":"severity","old":"none","new":"high"},{"seq":184388,"id":"CVE-2026-79378","ts":1789358318885,"field":"cvss","old":"7.5","new":null},{"seq":184387,"id":"CVE-2026-79378","ts":1789358318885,"field":"severity","old":"high","new":"none"},{"seq":182639,"id":"CVE-2026-79378","ts":1789354302540,"field":"cvss","old":null,"new":"7.5"},{"seq":182638,"id":"CVE-2026-79378","ts":1789354302540,"field":"severity","old":"none","new":"high"},{"seq":181432,"id":"CVE-2026-79378","ts":1789353280019,"field":"cvss","old":"7.5","new":null},{"seq":181431,"id":"CVE-2026-79378","ts":1789353280019,"field":"severity","old":"high","new":"none"},{"seq":180225,"id":"CVE-2026-79378","ts":1789350265352,"field":"cvss","old":null,"new":"7.5"},{"seq":180224,"id":"CVE-2026-79378","ts":1789350265352,"field":"severity","old":"none","new":"high"},{"seq":179018,"id":"CVE-2026-79378","ts":1789348256972,"field":"cvss","old":"7.5","new":null},{"seq":179017,"id":"CVE-2026-79378","ts":1789348256972,"field":"severity","old":"high","new":"none"},{"seq":177811,"id":"CVE-2026-79378","ts":1789346355866,"field":"cvss","old":null,"new":"7.5"},{"seq":177810,"id":"CVE-2026-79378","ts":1789346355866,"field":"severity","old":"none","new":"high"},{"seq":176604,"id":"CVE-2026-79378","ts":1789343157184,"field":"cvss","old":"7.5","new":null},{"seq":176603,"id":"CVE-2026-79378","ts":1789343157184,"field":"severity","old":"high","new":"none"},{"seq":174721,"id":"CVE-2026-79378","ts":1789334853021,"field":"cvss","old":null,"new":"7.5"},{"seq":174720,"id":"CVE-2026-79378","ts":1789334853021,"field":"severity","old":"none","new":"high"},{"seq":173516,"id":"CVE-2026-79378","ts":1789333641207,"field":"cvss","old":"7.5","new":null},{"seq":173515,"id":"CVE-2026-79378","ts":1789333641207,"field":"severity","old":"high","new":"none"},{"seq":172330,"id":"CVE-2026-79378","ts":1789331080491,"field":"cvss","old":null,"new":"7.5"},{"seq":172329,"id":"CVE-2026-79378","ts":1789331080491,"field":"severity","old":"none","new":"high"},{"seq":171144,"id":"CVE-2026-79378","ts":1789328750748,"field":"cvss","old":"7.5","new":null},{"seq":171143,"id":"CVE-2026-79378","ts":1789328750748,"field":"severity","old":"high","new":"none"},{"seq":169939,"id":"CVE-2026-79378","ts":1789327144503,"field":"cvss","old":null,"new":"7.5"},{"seq":169938,"id":"CVE-2026-79378","ts":1789327144503,"field":"severity","old":"none","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