{"id":"CVE-2026-20536","title":"In aidl, there is a possible memory corruption due to use after free","summary":"In aidl, 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","cwe":["CWE-416"],"vendor":"mediatek","product":"mt6878_firmware","affected":["mt6878_firmware","mt6881_firmware","mt6899_firmware","mt6989_firmware","mt6991_firmware","mt6993_firmware","mt8188_firmware","mt8189_firmware","mt8668_firmware","mt8695_firmware","mt8696_firmware","mt8781_firmware","mt8910_firmware"],"published":"2026-10-05","updated":"2026-10-09","sourceUpdated":"2026-10-09T14:27:49.533","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20536","references":[{"url":"https://www.mediatek.com/product-security-bulletin/October-2026","label":"security@mediatek.com"}],"tags":["nvd","cve.org"],"epss":0.00114,"epssPercentile":0.01459,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-05T10:25:25.709548Z"},"ingestedAt":"2026-10-05T02:10:36.182Z","slug":"CVE-2026-20536","body":"## Overview\n\nIn aidl, 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: ALPS11242428; Issue ID: MSV-9038.\n\n## Affected\n\n- `mt6878_firmware`\n- `mt6881_firmware`\n- `mt6899_firmware`\n- `mt6989_firmware`\n- `mt6991_firmware`\n- `mt6993_firmware`\n- `mt8188_firmware`\n- `mt8189_firmware`\n- `mt8668_firmware`\n- `mt8695_firmware`\n- `mt8696_firmware`\n- `mt8781_firmware`\n- `mt8910_firmware`\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":[{"seq":215772,"id":"CVE-2026-20536","ts":1791199145850,"field":"cvss","old":null,"new":"6.7"},{"seq":215771,"id":"CVE-2026-20536","ts":1791199145850,"field":"severity","old":"none","new":"medium"}]}