{"id":"CVE-2026-20584","title":"In usb, there is a possible memory corruption due to a missing bounds check","summary":"In usb, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation…","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvssSource":"adp","cwe":["CWE-787"],"vendor":"MediaTek, Inc.","product":"MediaTek chipset","affected":["mediatek_chipset MT6739","mediatek_chipset MT6761","mediatek_chipset MT6765","mediatek_chipset MT6768","mediatek_chipset MT6769","mediatek_chipset MT6781","mediatek_chipset MT6789","mediatek_chipset MT6833","mediatek_chipset MT6835","mediatek_chipset MT6853","mediatek_chipset MT6855","mediatek_chipset MT6858","mediatek_chipset MT6877","mediatek_chipset MT6878","mediatek_chipset MT6879","mediatek_chipset MT6881","mediatek_chipset MT6883","mediatek_chipset MT6885","mediatek_chipset MT6886","mediatek_chipset MT6889","mediatek_chipset MT6893","mediatek_chipset MT6895","mediatek_chipset MT6897","mediatek_chipset MT6899","mediatek_chipset MT6983","mediatek_chipset MT6985","mediatek_chipset MT6989","mediatek_chipset MT6991","mediatek_chipset MT6993"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-02T00:00:00+00:00"},"published":"2026-11-02","updated":"2026-11-03","sourceUpdated":"2026-11-03T04:55:51.058Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-20584","references":[{"url":"https://www.mediatek.com/product-security-bulletin/November-2026"}],"tags":["cve.org"],"epss":0.00109,"epssPercentile":0.01249,"ingestedAt":"2026-11-05T19:30:42.906Z","slug":"CVE-2026-20584","body":"## Overview\n\nIn usb, there is a possible memory corruption due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11411916; Issue ID: MSV-9746.\n\n## Affected\n\n- `mediatek_chipset MT6739`\n- `mediatek_chipset MT6761`\n- `mediatek_chipset MT6765`\n- `mediatek_chipset MT6768`\n- `mediatek_chipset MT6769`\n- `mediatek_chipset MT6781`\n- `mediatek_chipset MT6789`\n- `mediatek_chipset MT6833`\n- `mediatek_chipset MT6835`\n- `mediatek_chipset MT6853`\n- `mediatek_chipset MT6855`\n- `mediatek_chipset MT6858`\n- `mediatek_chipset MT6877`\n- `mediatek_chipset MT6878`\n- `mediatek_chipset MT6879`\n- `mediatek_chipset MT6881`\n- `mediatek_chipset MT6883`\n- `mediatek_chipset MT6885`\n- `mediatek_chipset MT6886`\n- `mediatek_chipset MT6889`\n- `mediatek_chipset MT6893`\n- `mediatek_chipset MT6895`\n- `mediatek_chipset MT6897`\n- `mediatek_chipset MT6899`\n- `mediatek_chipset MT6983`\n- `mediatek_chipset MT6985`\n- `mediatek_chipset MT6989`\n- `mediatek_chipset MT6991`\n- `mediatek_chipset MT6993`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}