{"id":"CVE-2026-20587","title":"In mtee, there is a possible escalation of privilege due to type confusion","summary":"In mtee, there is a possible escalation of privilege due to type confusion. 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","cwe":["CWE-843"],"vendor":"mediatek","product":"mt2718_firmware","affected":["mt2718_firmware","mt6768_firmware","mt6769_firmware","mt6789_firmware","mt6833_firmware","mt6855_firmware","mt6877_firmware","mt8186_firmware","mt8188_firmware","mt8189_firmware","mt8195_firmware","mt8196_firmware","mt8367_firmware","mt8391_firmware","mt8395_firmware","mt8668_firmware","mt8676_firmware","mt8678_firmware","mt8696_firmware","mt8781_firmware","mt8788e_firmware","mt8792_firmware","mt8793_firmware","mt8799_firmware","mt8910_firmware"],"published":"2026-10-05","updated":"2026-10-09","sourceUpdated":"2026-10-09T17:12:11.627","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20587","references":[{"url":"https://www.mediatek.com/product-security-bulletin/October-2026","label":"security@mediatek.com"}],"tags":["nvd","cve.org"],"epss":0.00109,"epssPercentile":0.01233,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-05T10:42:58.947485Z"},"ingestedAt":"2026-10-05T02:10:36.191Z","slug":"CVE-2026-20587","body":"## Overview\n\nIn mtee, there is a possible escalation of privilege due to type confusion. 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: ALPS11383899; Issue ID: MSV-9608.\n\n## Affected\n\n- `mt2718_firmware`\n- `mt6768_firmware`\n- `mt6769_firmware`\n- `mt6789_firmware`\n- `mt6833_firmware`\n- `mt6855_firmware`\n- `mt6877_firmware`\n- `mt8186_firmware`\n- `mt8188_firmware`\n- `mt8189_firmware`\n- `mt8195_firmware`\n- `mt8196_firmware`\n- `mt8367_firmware`\n- `mt8391_firmware`\n- `mt8395_firmware`\n- `mt8668_firmware`\n- `mt8676_firmware`\n- `mt8678_firmware`\n- `mt8696_firmware`\n- `mt8781_firmware`\n- `mt8788e_firmware`\n- `mt8792_firmware`\n- `mt8793_firmware`\n- `mt8799_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":215790,"id":"CVE-2026-20587","ts":1791199148652,"field":"cvss","old":null,"new":"6.7"},{"seq":215789,"id":"CVE-2026-20587","ts":1791199148652,"field":"severity","old":"none","new":"medium"}]}