{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20502","assignerOrgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","state":"PUBLISHED","assignerShortName":"MediaTek","dateReserved":"2025-11-03T01:30:59.028Z","datePublished":"2026-09-07T01:57:16.345Z","dateUpdated":"2026-09-08T03:55:26.630Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","shortName":"MediaTek","dateUpdated":"2026-09-07T01:57:16.345Z"},"descriptions":[{"lang":"en","value":"In vdec, there is a possible out of bounds write 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: ALPS11262030; Issue ID: MSV-9196."}],"affected":[{"vendor":"MediaTek, Inc.","product":"MediaTek chipset","defaultStatus":"unaffected","versions":[{"version":"MT2718","status":"affected"},{"version":"MT6580","status":"affected"},{"version":"MT6739","status":"affected"},{"version":"MT6761","status":"affected"},{"version":"MT6765","status":"affected"},{"version":"MT6768","status":"affected"},{"version":"MT6769","status":"affected"},{"version":"MT6779","status":"affected"},{"version":"MT6781","status":"affected"},{"version":"MT6785","status":"affected"},{"version":"MT6789","status":"affected"},{"version":"MT6833","status":"affected"},{"version":"MT6835","status":"affected"},{"version":"MT6853","status":"affected"},{"version":"MT6855","status":"affected"},{"version":"MT6858","status":"affected"},{"version":"MT6873","status":"affected"},{"version":"MT6877","status":"affected"},{"version":"MT6878","status":"affected"},{"version":"MT6879","status":"affected"},{"version":"MT6881","status":"affected"},{"version":"MT6883","status":"affected"},{"version":"MT6885","status":"affected"},{"version":"MT6886","status":"affected"},{"version":"MT6889","status":"affected"},{"version":"MT6893","status":"affected"},{"version":"MT6895","status":"affected"},{"version":"MT6897","status":"affected"},{"version":"MT6899","status":"affected"},{"version":"MT6983","status":"affected"},{"version":"MT6985","status":"affected"},{"version":"MT6989","status":"affected"},{"version":"MT6991","status":"affected"},{"version":"MT6993","status":"affected"},{"version":"MT8126","status":"affected"},{"version":"MT8171","status":"affected"},{"version":"MT8186","status":"affected"},{"version":"MT8188","status":"affected"},{"version":"MT8189","status":"affected"},{"version":"MT8195","status":"affected"},{"version":"MT8196","status":"affected"},{"version":"MT8367","status":"affected"},{"version":"MT8391","status":"affected"},{"version":"MT8395","status":"affected"},{"version":"MT8668","status":"affected"},{"version":"MT8676","status":"affected"},{"version":"MT8678","status":"affected"},{"version":"MT8696","status":"affected"},{"version":"MT8781","status":"affected"},{"version":"MT8788E","status":"affected"},{"version":"MT8792","status":"affected"},{"version":"MT8799","status":"affected"},{"version":"MT8910","status":"affected"}]}],"references":[{"url":"https://www.mediatek.com/product-security-bulletin/September-2026"}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow"}]}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.4,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-07T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-20502"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-08T03:55:26.630Z"}}]}}