{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20528", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "state": "PUBLISHED", "assignerShortName": "MediaTek", "dateReserved": "2025-11-03T01:30:59.034Z", "datePublished": "2026-10-05T01:40:04.137Z", "dateUpdated": "2026-10-05T01:40:04.137Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-10-05T01:40:04.137Z"}, "descriptions": [{"lang": "en", "value": "In ccci, there is a possible out of bounds write and read due to a missing bounds check. This could lead to local information disclosure, memory corruption, crashes, or privilege escalation if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: ALPS11428950 (Note: For MT6880, MT6890) / ALPS10563453 (Note: For MT6980D, MT6990, MT6986, MT6986D, MT6813, MT6988) / AUTO00858766 (Note: For MT2735, MT2737); Issue ID: MSV-9893."}], "affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "defaultStatus": "unaffected", "versions": [{"version": "MT2735", "status": "affected"}, {"version": "MT2737", "status": "affected"}, {"version": "MT6813", "status": "affected"}, {"version": "MT6880", "status": "affected"}, {"version": "MT6890", "status": "affected"}, {"version": "MT6980D", "status": "affected"}, {"version": "MT6986", "status": "affected"}, {"version": "MT6986D", "status": "affected"}, {"version": "MT6988", "status": "affected"}, {"version": "MT6990", "status": "affected"}]}], "references": [{"url": "https://www.mediatek.com/product-security-bulletin/October-2026"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "MediaTek chipset", "vendor": "MediaTek, Inc.", "versions": [{"status": "affected", "version": "MT2735"}, {"status": "affected", "version": "MT2737"}, {"status": "affected", "version": "MT6813"}, {"status": "affected", "version": "MT6880"}, {"status": "affected", "version": "MT6890"}, {"status": "affected", "version": "MT6980D"}, {"status": "affected", "version": "MT6986"}, {"status": "affected", "version": "MT6986D"}, {"status": "affected", "version": "MT6988"}, {"status": "affected", "version": "MT6990"}]}], "source": "security@mediatek.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In ccci, there is a possible out of bounds write and read due to a missing bounds check. This could lead to local information disclosure, memory corruption, crashes, or privilege escalation if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: ALPS11428950 (Note: For MT6880, MT6890) / ALPS10563453 (Note: For MT6980D, MT6990, MT6986, MT6986D, MT6813, MT6988) / AUTO00858766 (Note: For MT2735, MT2737); Issue ID: MSV-9893."}], "id": "CVE-2026-20528", "lastModified": "2026-10-05T02:16:51.520", "metrics": {}, "published": "2026-10-05T02:16:51.520", "references": [{"source": "security@mediatek.com", "url": "https://www.mediatek.com/product-security-bulletin/October-2026"}], "sourceIdentifier": "security@mediatek.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security@mediatek.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT2735"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT2737"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6813"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6880"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6890"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6980D"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6986"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6986D"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6988"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6990"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MediaTek chipset", "source": "cna", "vendor": "MediaTek, Inc."}, "product": "mediatek_chipset", "vendor": "mediatek,_inc."}], "created": "2026-10-05T03:45:18.558187+00:00", "title": "Out-of-Bounds Write in MediaTek ccci Component", "updated": "2026-10-05T04:30:04.008357+00:00", "vendors": ["mediatek,_inc.", "mediatek,_inc.$PRODUCT$mediatek_chipset"]}