{"id":"CVE-2026-20581","title":"In usb, there is a possible memory corruption due to use after free","summary":"In usb, there is a possible memory corruption due to use after free. 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 …","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-416"],"vendor":"MediaTek, Inc.","product":"MediaTek chipset","affected":["mediatek_chipset MT6858","mediatek_chipset MT6881","mediatek_chipset MT6993","mediatek_chipset MT8188","mediatek_chipset MT8189","mediatek_chipset MT8518S","mediatek_chipset MT8532","mediatek_chipset MT8668"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-02T00:00:00+00:00"},"published":"2026-11-02","updated":"2026-11-03","sourceUpdated":"2026-11-03T04:55:48.698Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-20581","references":[{"url":"https://www.mediatek.com/product-security-bulletin/November-2026"}],"tags":["cve.org"],"epss":0.00109,"epssPercentile":0.01251,"ingestedAt":"2026-11-05T19:30:42.905Z","slug":"CVE-2026-20581","body":"## Overview\n\nIn usb, there is a possible memory corruption due to use after free. 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: ALPS11411985; Issue ID: MSV-9750.\n\n## Affected\n\n- `mediatek_chipset MT6858`\n- `mediatek_chipset MT6881`\n- `mediatek_chipset MT6993`\n- `mediatek_chipset MT8188`\n- `mediatek_chipset MT8189`\n- `mediatek_chipset MT8518S`\n- `mediatek_chipset MT8532`\n- `mediatek_chipset MT8668`\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":[]}