{"id":"CVE-2026-20533","title":"In display, there is a possible escalation of privilege due to an integer overflow","summary":"In display, there is a possible escalation of privilege due to an integer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for explo…","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-190"],"vendor":"mediatek","product":"mt6739_firmware","affected":["mt6739_firmware","mt6761_firmware","mt6765_firmware","mt6768_firmware","mt6781_firmware","mt6789_firmware","mt6833_firmware","mt6835_firmware","mt6853_firmware","mt6855_firmware","mt6858_firmware","mt6877_firmware","mt6878_firmware","mt6879_firmware","mt6883_firmware","mt6885_firmware","mt6886_firmware","mt6889_firmware","mt6893_firmware","mt6895_firmware","mt6897_firmware","mt6899_firmware","mt6983_firmware","mt6985_firmware","mt6989_firmware","mt6991_firmware","mt6993_firmware","mt8171_firmware","mt8188_firmware","mt8668_firmware","mt8676_firmware","mt8678_firmware","mt8793_firmware"],"published":"2026-10-05","updated":"2026-10-09","sourceUpdated":"2026-10-09T14:37:22.450","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20533","references":[{"url":"https://www.mediatek.com/product-security-bulletin/October-2026","label":"security@mediatek.com"}],"tags":["nvd","cve.org"],"epss":0.00109,"epssPercentile":0.01217,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-05T10:26:46.547502Z"},"ingestedAt":"2026-10-05T02:10:36.187Z","slug":"CVE-2026-20533","body":"## Overview\n\nIn display, there is a possible escalation of privilege due to an integer overflow. 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: ALPS11296678; Issue ID: MSV-9167.\n\n## Affected\n\n- `mt6739_firmware`\n- `mt6761_firmware`\n- `mt6765_firmware`\n- `mt6768_firmware`\n- `mt6781_firmware`\n- `mt6789_firmware`\n- `mt6833_firmware`\n- `mt6835_firmware`\n- `mt6853_firmware`\n- `mt6855_firmware`\n- `mt6858_firmware`\n- `mt6877_firmware`\n- `mt6878_firmware`\n- `mt6879_firmware`\n- `mt6883_firmware`\n- `mt6885_firmware`\n- `mt6886_firmware`\n- `mt6889_firmware`\n- `mt6893_firmware`\n- `mt6895_firmware`\n- `mt6897_firmware`\n- `mt6899_firmware`\n- `mt6983_firmware`\n- `mt6985_firmware`\n- `mt6989_firmware`\n- `mt6991_firmware`\n- `mt6993_firmware`\n- `mt8171_firmware`\n- `mt8188_firmware`\n- `mt8668_firmware`\n- `mt8676_firmware`\n- `mt8678_firmware`\n- `mt8793_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":215766,"id":"CVE-2026-20533","ts":1791199144868,"field":"cvss","old":null,"new":"6.7"},{"seq":215765,"id":"CVE-2026-20533","ts":1791199144868,"field":"severity","old":"none","new":"medium"}]}