{"id":"CVE-2021-0688","aliases":["A-161149543","ASB-A-161149543","EUVD-2021-3307","GHSA-jr25-cxp3-7whx"],"status":"published","title":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race...","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00161,"percentile":0.05385,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-362"],"published":"2021-09-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","exploits":[{"source":"pocgithub","id":"Satheesh575555/frameworks_base_AOSP10_r33_CVE-2021-0688","title":"Satheesh575555/frameworks_base_AOSP10_r33_CVE-2021-0688","date":"2022-04-12","url":"https://github.com/Satheesh575555/frameworks_base_AOSP10_r33_CVE-2021-0688"}],"fixes":[{"ecosystem":"Android","package":"platform/frameworks/base","fixed_in":["8.1:2021-09-01","9:2021-09-01","10:2021-09-01","11:2021-09-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1:0"},{"fixed":"8.1:2021-09-01"}]}],"versions":["8.1"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9:0"},{"fixed":"9:2021-09-01"}]}],"versions":["9"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10:0"},{"fixed":"10:2021-09-01"}]}],"versions":["10"]},{"source":"osv","ecosystem":"Android","package":"platform/frameworks/base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11:0"},{"fixed":"11:2021-09-01"}]}],"versions":["11"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-09-01","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0688"},{"url":"https://github.com/advisories/GHSA-jr25-cxp3-7whx"},{"url":"https://android.googlesource.com/platform/frameworks/base/+/372088d7721f4c8cb7260d8e9fdaf498c5a30464","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-0688","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543","status":"published","published":"2021-10-06T14:10:40Z","modified":"2024-08-03T15:47:28.307Z","updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-3307","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543","status":"published","published":"2021-10-06T14:10:40Z","modified":"2024-08-03T15:47:28Z","updated_at":"2026-11-03T03:25:16.085901Z"}],"ghsa":[{"id":"GHSA-jr25-cxp3-7whx","title":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race...","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543","status":"published","published":"2022-05-24T19:16:48Z","modified":"2023-01-30T05:02:36Z","cwes":["CWE-362"],"updated_at":"2026-11-02T14:46:40.355653Z"}],"nvd":[{"id":"CVE-2021-0688","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543","status":"published","published":"2021-10-06T15:15:14.95Z","modified":"2026-06-17T03:30:32.667Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:06:59.314106Z"}],"osv":[{"id":"ASB-A-161149543","description":"In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-09-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-09T17:04:22.742827Z"}]}}