{"id":"CVE-2021-0522","aliases":["A-174182139","ASB-A-174182139","EUVD-2021-3141","GHSA-vg2h-5xjr-qrf3"],"status":"published","title":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due...","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01383,"percentile":0.72524,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-125","CWE-416"],"published":"2021-06-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","exploits":[{"source":"pocgithub","id":"nanopathi/system_bt_AOSP10_r33_CVE-2021-0522","title":"nanopathi/system_bt_AOSP10_r33_CVE-2021-0522","date":"2022-04-22","url":"https://github.com/nanopathi/system_bt_AOSP10_r33_CVE-2021-0522"}],"fixes":[{"ecosystem":"Android","package":"platform/system/bt","fixed_in":["9:2021-06-01","10:2021-06-01","11:2021-06-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-06-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-06-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/system/bt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-06-01"}]}],"versions":["11"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-06-01","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0522"},{"url":"https://github.com/advisories/GHSA-vg2h-5xjr-qrf3"},{"url":"https://android.googlesource.com/platform/system/bt/+/71c573ae67b6a15c33ad1036b37b999c54d7236b","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-0522","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139","status":"published","published":"2021-06-21T16:01:29Z","modified":"2024-08-03T15:40:01.261Z","updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-3141","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139","status":"published","published":"2021-06-21T16:01:29Z","modified":"2024-08-03T15:40:01Z","updated_at":"2026-11-03T03:25:16.987587Z"}],"ghsa":[{"id":"GHSA-vg2h-5xjr-qrf3","title":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due...","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139","status":"published","published":"2022-05-24T19:05:43Z","modified":"2023-01-29T05:07:03Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:46:08.723565Z"}],"nvd":[{"id":"CVE-2021-0522","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-9 Android-10Android ID: A-174182139","status":"published","published":"2021-06-21T17:15:08.697Z","modified":"2026-06-17T03:30:14.683Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125","CWE-416"],"updated_at":"2026-11-02T14:06:54.892562Z"}],"osv":[{"id":"ASB-A-174182139","description":"In ConnectionHandler::SdpCb of connection_handler.cc, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-06-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:35:04.393608Z"}]}}