{"id":"CVE-2023-43540","aliases":["EUVD-2023-47946","GHSA-6299-m9xc-vxvj"],"status":"published","title":"Buffer Copy Without Checking Size of Input in Bluetooth HOST","description":"Memory corruption while processing the IOCTL FM HCI WRITE request.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00111,"percentile":0.01344,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120","CWE-787"],"published":"2024-03-04T10:48:47Z","modified":"2026-06-17T06:25:50Z","products":[{"vendor":"qualcomm","product":"aqt1000_firmware"},{"vendor":"qualcomm","product":"fastconnect_6200_firmware"},{"vendor":"qualcomm","product":"fastconnect_6700_firmware"},{"vendor":"qualcomm","product":"fastconnect_6800_firmware"},{"vendor":"qualcomm","product":"fastconnect_6900_firmware"},{"vendor":"qualcomm","product":"fastconnect_7800_firmware"},{"vendor":"qualcomm","product":"qca6391_firmware"},{"vendor":"qualcomm","product":"qca6420_firmware"},{"vendor":"qualcomm","product":"qca6430_firmware"},{"vendor":"qualcomm","product":"sc8380xp_firmware"},{"vendor":"qualcomm","product":"sm6250_firmware"},{"vendor":"qualcomm","product":"snapdragon_7c\\+_gen_3_compute_firmware"},{"vendor":"qualcomm","product":"snapdragon_7c_compute_firmware"},{"vendor":"qualcomm","product":"snapdragon_7c_gen_2_compute_firmware"},{"vendor":"qualcomm","product":"snapdragon_8c_compute_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_compute_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_2_5g_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_3_firmware"},{"vendor":"qualcomm","product":"wcd9340_firmware"},{"vendor":"qualcomm","product":"wcd9341_firmware"},{"vendor":"qualcomm","product":"wcd9380_firmware"},{"vendor":"qualcomm","product":"wcd9385_firmware"},{"vendor":"qualcomm","product":"wsa8810_firmware"},{"vendor":"qualcomm","product":"wsa8815_firmware"},{"vendor":"qualcomm","product":"wsa8830_firmware"},{"vendor":"qualcomm","product":"wsa8835_firmware"},{"vendor":"qualcomm","product":"wsa8840_firmware"},{"vendor":"qualcomm","product":"wsa8845_firmware"},{"vendor":"qualcomm","product":"wsa8845h_firmware"},{"vendor":"qualcomm, inc.","product":"snapdragon"}],"references":[{"url":"https://www.qualcomm.com/company/product-security/bulletins/march-2024-bulletin","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43540"},{"url":"https://github.com/advisories/GHSA-6299-m9xc-vxvj"}],"sources":{"cve":[{"id":"CVE-2023-43540","title":"Buffer Copy Without Checking Size of Input in Bluetooth HOST","description":"Memory corruption while processing the IOCTL FM HCI WRITE request.","status":"published","published":"2024-03-04T10:48:47.976Z","modified":"2024-08-02T19:44:43.794Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:14.633899Z"}],"euvd":[{"id":"EUVD-2023-47946","description":"Memory corruption while processing the IOCTL FM HCI WRITE request.","status":"published","published":"2024-03-04T10:48:47Z","modified":"2024-08-02T19:44:43Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:49:59.530903Z"}],"ghsa":[{"id":"GHSA-6299-m9xc-vxvj","title":"Memory corruption while processing the IOCTL FM HCI WRITE request.","description":"Memory corruption while processing the IOCTL FM HCI WRITE request.","status":"published","published":"2024-03-04T12:31:10Z","modified":"2025-01-10T18:32:39Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120","CWE-787"],"updated_at":"2026-11-02T14:59:27.888313Z"}],"nvd":[{"id":"CVE-2023-43540","description":"Memory corruption while processing the IOCTL FM HCI WRITE request.","status":"published","published":"2024-03-04T11:15:12.133Z","modified":"2026-06-17T06:25:50.203Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-120","CWE-787"],"updated_at":"2026-11-02T14:09:10.192572Z"}]}}