{"id":"CVE-2026-20528","state":"PUBLISHED","title":"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 e","description":"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.","publishedAt":"2026-10-05T01:40:04.137Z","updatedAt":"2026-10-06T03:55:41.192Z","severity":{"score":6.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"MediaTek","products":["MediaTek, Inc. MediaTek chipset"],"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":["https://www.mediatek.com/product-security-bulletin/October-2026"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20528.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20528","state":"PUBLISHED","datePublished":"2026-10-05T01:40:04.137Z","dateUpdated":"2026-10-06T03:55:41.192Z","assignerShortName":"MediaTek","assignerOrgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","dateReserved":"2025-11-03T01:30:59.034Z"},"containers":{"cna":{"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":[{"cweId":"CWE-787","type":"CWE","lang":"en","description":"CWE-787 Out-of-bounds Write"}]}],"providerMetadata":{"shortName":"MediaTek","orgId":"ee979b05-11f8-4f25-a7e0-a1fa9c190374","dateUpdated":"2026-10-05T01:40:04.137Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-20528"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-06T03:55:41.192Z"}}]}}}