{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20542", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "state": "PUBLISHED", "assignerShortName": "MediaTek", "dateReserved": "2025-11-03T01:30:59.040Z", "datePublished": "2026-10-05T01:40:23.184Z", "dateUpdated": "2026-10-05T10:53:46.058Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-10-05T01:40:23.184Z"}, "descriptions": [{"lang": "en", "value": "In apusys, there is a possible memory corruption due to use after free. 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: ALPS11076799; Issue ID: MSV-8143."}], "affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "defaultStatus": "unaffected", "versions": [{"version": "MT2718", "status": "affected"}, {"version": "MT6878", "status": "affected"}, {"version": "MT6897", "status": "affected"}, {"version": "MT6899", "status": "affected"}, {"version": "MT6989", "status": "affected"}, {"version": "MT6991", "status": "affected"}, {"version": "MT8171", "status": "affected"}, {"version": "MT8188", "status": "affected"}, {"version": "MT8189", "status": "affected"}, {"version": "MT8196", "status": "affected"}, {"version": "MT8370", "status": "affected"}, {"version": "MT8371", "status": "affected"}, {"version": "MT8390", "status": "affected"}, {"version": "MT8391", "status": "affected"}, {"version": "MT8395", "status": "affected"}, {"version": "MT8678", "status": "affected"}, {"version": "MT8792", "status": "affected"}, {"version": "MT8793", "status": "affected"}, {"version": "MT8796", "status": "affected"}]}], "references": [{"url": "https://www.mediatek.com/product-security-bulletin/October-2026"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"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": {"id": "CVE-2026-20542", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-05T10:23:51.780035Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T10:53:46.058Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"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": {"id": "CVE-2026-20542", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-05T10:23:51.780035Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T10:23:46.255Z"}}], "cna": {"affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT2718"}, {"status": "affected", "version": "MT6878"}, {"status": "affected", "version": "MT6897"}, {"status": "affected", "version": "MT6899"}, {"status": "affected", "version": "MT6989"}, {"status": "affected", "version": "MT6991"}, {"status": "affected", "version": "MT8171"}, {"status": "affected", "version": "MT8188"}, {"status": "affected", "version": "MT8189"}, {"status": "affected", "version": "MT8196"}, {"status": "affected", "version": "MT8370"}, {"status": "affected", "version": "MT8371"}, {"status": "affected", "version": "MT8390"}, {"status": "affected", "version": "MT8391"}, {"status": "affected", "version": "MT8395"}, {"status": "affected", "version": "MT8678"}, {"status": "affected", "version": "MT8792"}, {"status": "affected", "version": "MT8793"}, {"status": "affected", "version": "MT8796"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.mediatek.com/product-security-bulletin/October-2026"}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "In apusys, there is a possible memory corruption due to use after free. 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: ALPS11076799; Issue ID: MSV-8143."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-10-05T01:40:23.184Z"}}}, "cveMetadata": {"cveId": "CVE-2026-20542", "state": "PUBLISHED", "dateUpdated": "2026-10-05T10:53:46.058Z", "dateReserved": "2025-11-03T01:30:59.040Z", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "datePublished": "2026-10-05T01:40:23.184Z", "assignerShortName": "MediaTek"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "MediaTek chipset", "vendor": "MediaTek, Inc.", "versions": [{"status": "affected", "version": "MT2718"}, {"status": "affected", "version": "MT6878"}, {"status": "affected", "version": "MT6897"}, {"status": "affected", "version": "MT6899"}, {"status": "affected", "version": "MT6989"}, {"status": "affected", "version": "MT6991"}, {"status": "affected", "version": "MT8171"}, {"status": "affected", "version": "MT8188"}, {"status": "affected", "version": "MT8189"}, {"status": "affected", "version": "MT8196"}, {"status": "affected", "version": "MT8370"}, {"status": "affected", "version": "MT8371"}, {"status": "affected", "version": "MT8390"}, {"status": "affected", "version": "MT8391"}, {"status": "affected", "version": "MT8395"}, {"status": "affected", "version": "MT8678"}, {"status": "affected", "version": "MT8792"}, {"status": "affected", "version": "MT8793"}, {"status": "affected", "version": "MT8796"}]}], "source": "security@mediatek.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In apusys, there is a possible memory corruption due to use after free. 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: ALPS11076799; Issue ID: MSV-8143."}], "id": "CVE-2026-20542", "lastModified": "2026-10-05T11:16:52.103", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20542", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-05T10:23:51.780035Z", "version": "2.0.3"}}]}, "published": "2026-10-05T02:16:53.270", "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-416"}], "source": "security@mediatek.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT2718"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6878"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6897"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6899"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6989"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6991"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8171"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8188"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8189"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8196"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8370"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8371"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8390"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8391"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8395"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8678"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8792"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8793"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8796"}}], "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"}], "created": "2026-10-05T03:45:19.185228+00:00", "updated": "2026-10-05T13:15:07.226636+00:00", "vendors": ["mediatek", "mediatek$PRODUCT$mediatek_chipset"]}