{"id":"CVE-2026-20573","title":"In afe, there is a possible memory corruption due to double free","summary":"In afe, there is a possible memory corruption due to double 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:…","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-415"],"vendor":"MediaTek, Inc.","product":"MediaTek chipset","affected":["mediatek_chipset MT2735","mediatek_chipset MT2737","mediatek_chipset MT6768","mediatek_chipset MT6781","mediatek_chipset MT6789","mediatek_chipset MT6853","mediatek_chipset MT6855","mediatek_chipset MT6877","mediatek_chipset MT6878","mediatek_chipset MT6885","mediatek_chipset MT6886","mediatek_chipset MT6890","mediatek_chipset MT6895","mediatek_chipset MT6897","mediatek_chipset MT6899","mediatek_chipset MT6980D","mediatek_chipset MT6985","mediatek_chipset MT6988","mediatek_chipset MT6989","mediatek_chipset MT6990","mediatek_chipset MT6991","mediatek_chipset MT6993","mediatek_chipset MT8168","mediatek_chipset MT8186","mediatek_chipset MT8188","mediatek_chipset MT8189","mediatek_chipset MT8195","mediatek_chipset MT8196","mediatek_chipset MT8365","mediatek_chipset MT8367","mediatek_chipset MT8390","mediatek_chipset MT8391","mediatek_chipset MT8668","mediatek_chipset MT8678","mediatek_chipset MT8793"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-02T00:00:00+00:00"},"published":"2026-11-02","updated":"2026-11-03","sourceUpdated":"2026-11-03T04:55:44.809Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-20573","references":[{"url":"https://www.mediatek.com/product-security-bulletin/November-2026"}],"tags":["cve.org"],"epss":0.00125,"epssPercentile":0.02228,"ingestedAt":"2026-11-05T19:30:42.904Z","slug":"CVE-2026-20573","body":"## Overview\n\nIn afe, there is a possible memory corruption due to double 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: ALPS11431412; Issue ID: MSV-9923.\n\n## Affected\n\n- `mediatek_chipset MT2735`\n- `mediatek_chipset MT2737`\n- `mediatek_chipset MT6768`\n- `mediatek_chipset MT6781`\n- `mediatek_chipset MT6789`\n- `mediatek_chipset MT6853`\n- `mediatek_chipset MT6855`\n- `mediatek_chipset MT6877`\n- `mediatek_chipset MT6878`\n- `mediatek_chipset MT6885`\n- `mediatek_chipset MT6886`\n- `mediatek_chipset MT6890`\n- `mediatek_chipset MT6895`\n- `mediatek_chipset MT6897`\n- `mediatek_chipset MT6899`\n- `mediatek_chipset MT6980D`\n- `mediatek_chipset MT6985`\n- `mediatek_chipset MT6988`\n- `mediatek_chipset MT6989`\n- `mediatek_chipset MT6990`\n- `mediatek_chipset MT6991`\n- `mediatek_chipset MT6993`\n- `mediatek_chipset MT8168`\n- `mediatek_chipset MT8186`\n- `mediatek_chipset MT8188`\n- `mediatek_chipset MT8189`\n- `mediatek_chipset MT8195`\n- `mediatek_chipset MT8196`\n- `mediatek_chipset MT8365`\n- `mediatek_chipset MT8367`\n- `mediatek_chipset MT8390`\n- `mediatek_chipset MT8391`\n- `mediatek_chipset MT8668`\n- `mediatek_chipset MT8678`\n- `mediatek_chipset MT8793`\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":[]}