{"id":"CVE-2018-9539","aliases":["EUVD-2018-21133","GHSA-pc3x-w29g-959c"],"status":"published","title":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This...","description":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-113027383","severity":{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00353,"percentile":0.29217,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-362"],"published":"2018-11-14T18:00:00Z","modified":"2026-06-17T02:06:53Z","exploits":[{"source":"pocgithub","id":"tamirzb/CVE-2018-9539","title":"tamirzb/CVE-2018-9539","date":"2018-11-11","url":"https://github.com/tamirzb/CVE-2018-9539"}],"products":[{"vendor":"google","product":"android"},{"vendor":"google inc.","product":"android"}],"references":[{"url":"http://www.securityfocus.com/bid/105865","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://source.android.com/security/bulletin/2018-11-01","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9539"},{"url":"https://github.com/advisories/GHSA-pc3x-w29g-959c"}],"sources":{"cve":[{"id":"CVE-2018-9539","description":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-113027383","status":"published","published":"2018-11-14T18:00:00Z","modified":"2024-08-05T07:24:55.936Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-21133","description":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-113027383","status":"published","published":"2018-11-14T18:00:00Z","modified":"2024-08-05T07:24:55Z","updated_at":"2026-11-03T02:40:00.040327Z"}],"ghsa":[{"id":"GHSA-pc3x-w29g-959c","title":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This...","description":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-113027383","status":"published","published":"2022-05-14T01:48:13Z","modified":"2023-02-02T05:04:20Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:51:51.17086Z"}],"nvd":[{"id":"CVE-2018-9539","description":"In the ClearKey CAS descrambler, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.0 Android-8.1 Android-9. Android ID: A-113027383","status":"published","published":"2018-11-14T18:29:00.963Z","modified":"2026-06-17T02:06:53.25Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:04:48.987926Z"}]}}