{"id":"CVE-2021-1022","aliases":["A-180420059","EUVD-2021-6489","GHSA-5pfp-wg82-hvp6","PUB-A-180420059"],"status":"published","title":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service...","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-180420059","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00773,"percentile":0.56042,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2021-12-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/system/bt","fixed_in":["12:2021-12-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12:0"},{"fixed":"12:2021-12-01"}]}],"versions":["12"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/pixel/2021-12-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1022"},{"url":"https://github.com/advisories/GHSA-5pfp-wg82-hvp6"},{"url":"https://source.android.com/security/bulletin/2021-12-01","tags":["advisory"]},{"url":"https://android.googlesource.com/platform/system/bt/+/1924e011a8770edcc8430702114ed06b6c11c5ab","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-1022","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-180420059","status":"published","published":"2021-12-15T18:06:00Z","modified":"2024-08-03T15:55:18.406Z","updated_at":"2026-11-02T14:33:08.045407Z"}],"euvd":[{"id":"EUVD-2021-6489","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-180420059","status":"published","published":"2021-12-15T18:06:00Z","modified":"2024-08-03T15:55:18Z","updated_at":"2026-11-03T03:25:15.598162Z"}],"ghsa":[{"id":"GHSA-5pfp-wg82-hvp6","title":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service...","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-180420059","status":"published","published":"2021-12-16T00:00:55Z","modified":"2023-02-01T05:06:49Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:50:25.548742Z"}],"nvd":[{"id":"CVE-2021-1022","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-180420059","status":"published","published":"2021-12-15T19:15:14.057Z","modified":"2026-06-17T03:30:49.177Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:07:02.566991Z"}],"osv":[{"id":"PUB-A-180420059","description":"In btif_in_hf_client_generic_evt of btif_hf_client.cc, there is a possible Bluetooth service crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-12-01T00:00:00Z","modified":"2026-11-09T16:40:10.884737887Z","updated_at":"2026-11-10T17:35:07.907985Z"}]}}