{"id":"CVE-2026-20521","title":"In Video HAL, there is a possible escalation of privilege due to a missing bounds check","summary":"In Video HAL, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Pa…","severity":"none","cwe":["CWE-121"],"vendor":"MediaTek, Inc.","product":"MediaTek chipset","affected":["mediatek_chipset MT2718","mediatek_chipset MT6768","mediatek_chipset MT6769","mediatek_chipset MT6781","mediatek_chipset MT6789","mediatek_chipset MT6833","mediatek_chipset MT6835","mediatek_chipset MT6853","mediatek_chipset MT6855","mediatek_chipset MT6858","mediatek_chipset MT6877","mediatek_chipset MT6878","mediatek_chipset MT6879","mediatek_chipset MT6881","mediatek_chipset MT6883","mediatek_chipset MT6885","mediatek_chipset MT6886","mediatek_chipset MT6889","mediatek_chipset MT6893","mediatek_chipset MT6895","mediatek_chipset MT6897","mediatek_chipset MT6899","mediatek_chipset MT6983","mediatek_chipset MT6985","mediatek_chipset MT6989","mediatek_chipset MT6991","mediatek_chipset MT6993","mediatek_chipset MT8126","mediatek_chipset MT8171","mediatek_chipset MT8186","mediatek_chipset MT8188","mediatek_chipset MT8189","mediatek_chipset MT8195","mediatek_chipset MT8196","mediatek_chipset MT8367","mediatek_chipset MT8391","mediatek_chipset MT8395","mediatek_chipset MT8668","mediatek_chipset MT8676","mediatek_chipset MT8678","mediatek_chipset MT8695","mediatek_chipset MT8696","mediatek_chipset MT8781","mediatek_chipset MT8788E","mediatek_chipset MT8792","mediatek_chipset MT8793","mediatek_chipset MT8799","mediatek_chipset MT8910"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T02:16:50.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20521","references":[{"url":"https://www.mediatek.com/product-security-bulletin/October-2026","label":"security@mediatek.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-05T02:10:36.194Z","slug":"CVE-2026-20521","body":"## Overview\n\nIn Video HAL, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11375674; Issue ID: MSV-9571.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}