{"id":"CVE-2023-20808","aliases":["EUVD-2023-24987","GHSA-3r42-gxp3-vpfc"],"status":"published","title":"In OPTEE, there is a possible out of bounds write due to a missing bounds check. This could lead...","description":"In OPTEE, 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: DTV03645895; Issue ID: DTV03645895.","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":"2026-11-09","score":0.0009,"percentile":0.00441,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-08-07T03:21:54Z","modified":"2026-06-17T05:30:53Z","products":[{"vendor":"google","product":"android"},{"vendor":"mediatek","product":"mt9011"},{"vendor":"mediatek","product":"mt9022"},{"vendor":"mediatek","product":"mt9618"},{"vendor":"mediatek","product":"mt9649"},{"vendor":"mediatek","product":"mt9653"},{"vendor":"mediatek, inc.","product":"mt9011, mt9022, mt9618, mt9649, mt9653"}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/August-2023","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20808"},{"url":"https://github.com/advisories/GHSA-3r42-gxp3-vpfc"}],"sources":{"cve":[{"id":"CVE-2023-20808","description":"In OPTEE, 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: DTV03645895; Issue ID: DTV03645895.","status":"published","published":"2023-08-07T03:21:54.842Z","modified":"2024-10-15T19:49:27.901Z","updated_at":"2026-11-02T14:35:13.912858Z"}],"euvd":[{"id":"EUVD-2023-24987","description":"In OPTEE, 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: DTV03645895; Issue ID: DTV03645895.","status":"published","published":"2023-08-07T03:21:54Z","modified":"2024-10-15T19:49:27Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"none"}],"updated_at":"2026-11-03T00:27:35.286068Z"}],"ghsa":[{"id":"GHSA-3r42-gxp3-vpfc","title":"In OPTEE, there is a possible out of bounds write due to a missing bounds check. This could lead...","description":"In OPTEE, 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: DTV03645895; Issue ID: DTV03645895.","status":"published","published":"2023-08-07T06:30:28Z","modified":"2024-04-04T06:35:15Z","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":"2026-11-02T14:56:43.722866Z"}],"nvd":[{"id":"CVE-2023-20808","description":"In OPTEE, 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: DTV03645895; Issue ID: DTV03645895.","status":"published","published":"2023-08-07T04:15:14.18Z","modified":"2026-06-17T05:30:53.593Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:08:20.798312Z"}]}}