{"id":"CVE-2023-20657","aliases":["A-267955236","ASB-A-267955236","EUVD-2023-24836","GHSA-4qvr-2hph-h947","M-ALPS07571485"],"status":"published","title":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead...","description":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07571485; Issue ID: ALPS07571485.","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":"2026-11-10","score":0.00093,"percentile":0.00522,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2023-04-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["SoCVersion:2023-04-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2023-04-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"google","product":"android"},{"vendor":"mediatek, inc.","product":"mt6580, mt6735, mt6737, mt6739, mt6753, mt6761, mt6765, mt6768, mt6771, mt6779, mt6781, mt6785, mt6789, mt6833, mt6853, mt6853t, mt6855, mt6873, mt6877, mt6879, mt6883, mt6885, mt6889, mt6893, mt6983, mt8321, mt8385, mt8765, mt8766, mt8768, mt8771, mt8781, mt8786, mt8788, mt8789, mt8791t, mt8795t, mt8797, mt8798"}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/April-2023","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20657"},{"url":"https://github.com/advisories/GHSA-4qvr-2hph-h947"},{"url":"https://source.android.com/security/bulletin/2023-04-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-20657","description":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07571485; Issue ID: ALPS07571485.","status":"published","published":"2023-04-06T00:00:00Z","modified":"2025-03-17T18:20:20.026Z","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":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:13.912858Z"}],"euvd":[{"id":"EUVD-2023-24836","description":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07571485; Issue ID: ALPS07571485.","status":"published","published":"2023-04-06T00:00:00Z","modified":"2025-03-17T18:20:20Z","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"}],"updated_at":"2026-11-02T20:53:01.76583Z"}],"ghsa":[{"id":"GHSA-4qvr-2hph-h947","title":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead...","description":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07571485; Issue ID: ALPS07571485.","status":"published","published":"2023-04-06T18:30:17Z","modified":"2023-04-21T05:08:13Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:54:32.800891Z"}],"nvd":[{"id":"CVE-2023-20657","description":"In mtee, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07571485; Issue ID: ALPS07571485.","status":"published","published":"2023-04-06T18:15:08.62Z","modified":"2026-06-17T05:30:33.087Z","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":"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":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:53.719171Z"}],"osv":[{"id":"ASB-A-267955236","status":"published","published":"2023-04-01T00:00:00Z","modified":"2026-11-09T16:40:10.884737887Z","updated_at":"2026-11-09T17:05:18.698671Z"}]}}