{"id":"CVE-2021-0656","aliases":["EUVD-2021-3275","GHSA-8h5w-h3fr-4whw"],"status":"published","title":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to...","description":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05709376; Issue ID: ALPS05709376.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00116,"percentile":0.01649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2021-11-18T14:57:18Z","modified":"2026-06-17T03:30:29Z","products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/November-2021","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0656"},{"url":"https://github.com/advisories/GHSA-8h5w-h3fr-4whw"}],"sources":{"cve":[{"id":"CVE-2021-0656","description":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05709376; Issue ID: ALPS05709376.","status":"published","published":"2021-11-18T14:57:18Z","modified":"2024-08-03T15:47:28.221Z","updated_at":"2026-11-02T14:33:10.887946Z"}],"euvd":[{"id":"EUVD-2021-3275","description":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05709376; Issue ID: ALPS05709376.","status":"published","published":"2021-11-18T14:57:18Z","modified":"2024-08-03T15:47:28Z","updated_at":"2026-11-03T03:25:16.546422Z"}],"ghsa":[{"id":"GHSA-8h5w-h3fr-4whw","title":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to...","description":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05709376; Issue ID: ALPS05709376.","status":"published","published":"2021-11-19T00:00:33Z","modified":"2023-02-01T05:06:13Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:50:19.669171Z"}],"nvd":[{"id":"CVE-2021-0656","description":"In edma driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05709376; Issue ID: ALPS05709376.","status":"published","published":"2021-11-18T15:15:08.51Z","modified":"2026-06-17T03:30:29.11Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:07:01.428028Z"}]}}