CVE-2026-20452

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20452", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "state": "PUBLISHED", "assignerShortName": "MediaTek", "dateReserved": "2025-11-03T01:30:59.013Z", "datePublished": "2026-06-01T03:20:08.315Z", "dateUpdated": "2026-06-02T03:55:38.204Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-06-01T03:20:08.315Z"}, "descriptions": [{"lang": "en", "value": "In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295."}], "affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "defaultStatus": "unaffected", "versions": [{"version": "MT6890", "status": "affected"}, {"version": "MT7615", "status": "affected"}, {"version": "MT7915", "status": "affected"}, {"version": "MT7916", "status": "affected"}, {"version": "MT7981", "status": "affected"}, {"version": "MT7986", "status": "affected"}, {"version": "MT7990", "status": "affected"}, {"version": "MT7992", "status": "affected"}, {"version": "MT7993", "status": "affected"}]}], "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/June-2026"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-122", "description": "CWE-122 Heap Overflow"}]}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-01T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-20452"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T03:55:38.204Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-20452", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-01T11:00:37.275146Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-01T11:00:54.420Z"}}], "cna": {"affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT6890"}, {"status": "affected", "version": "MT7615"}, {"status": "affected", "version": "MT7915"}, {"status": "affected", "version": "MT7916"}, {"status": "affected", "version": "MT7981"}, {"status": "affected", "version": "MT7986"}, {"status": "affected", "version": "MT7990"}, {"status": "affected", "version": "MT7992"}, {"status": "affected", "version": "MT7993"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/June-2026"}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-122", "description": "CWE-122 Heap Overflow"}]}], "providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-06-01T03:20:08.315Z"}}}, "cveMetadata": {"cveId": "CVE-2026-20452", "state": "PUBLISHED", "dateUpdated": "2026-06-02T03:55:38.204Z", "dateReserved": "2025-11-03T01:30:59.013Z", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "datePublished": "2026-06-01T03:20:08.315Z", "assignerShortName": "MediaTek"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "MediaTek chipset", "vendor": "MediaTek, Inc.", "versions": [{"status": "affected", "version": "MT6890"}, {"status": "affected", "version": "MT7615"}, {"status": "affected", "version": "MT7915"}, {"status": "affected", "version": "MT7916"}, {"status": "affected", "version": "MT7981"}, {"status": "affected", "version": "MT7986"}, {"status": "affected", "version": "MT7990"}, {"status": "affected", "version": "MT7992"}, {"status": "affected", "version": "MT7993"}]}], "source": "security@mediatek.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "BB9AC17B-5ED8-4B58-A7A0-B146DD1DD244", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*", "matchCriteriaId": "171D1C08-F055-44C0-913C-AA2B73AF5B72", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7615_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "209D0B1B-C27E-429E-ABC0-894E105814D1", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*", "matchCriteriaId": "05748BB1-0D48-4097-932E-E8E2E574FD8D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7915_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "E6C54AA5-6C50-4223-B433-4C14AD4E96A3", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*", "matchCriteriaId": "3AB22996-9C22-4B6C-9E94-E4C055D16335", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7916_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "5318B13A-DB70-4017-AB82-2C7F5144FCFF", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*", "matchCriteriaId": "DD5AA441-5381-4179-89EB-1642120F72B4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7981_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "D70F8D77-FDEC-4AAE-B22C-4F05ED880C10", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*", "matchCriteriaId": "490CD97B-021F-4350-AEE7-A2FA866D5889", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7986_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "8798F3AE-A468-49B0-AE1D-6F1E41C76085", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*", "matchCriteriaId": "40A9E917-4B34-403F-B512-09EEBEA46811", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7990_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "E58E5724-B753-4E78-A5F3-4B9023A15637", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7990:-:*:*:*:*:*:*:*", "matchCriteriaId": "4901B2A5-B0C8-4A0C-AC17-87D469744817", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7992_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "8CB6DB8C-E756-4FAE-ADCC-CFE91C7C735E", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7992:-:*:*:*:*:*:*:*", "matchCriteriaId": "50D01D7D-A88D-471D-A23A-42AF4DF82952", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt7993_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "F389E2A1-CE3A-4826-A248-A9BCEF3088F4", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt7993:-:*:*:*:*:*:*:*", "matchCriteriaId": "76653163-7627-4C63-A5E2-6277C0EFE23E", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295."}, {"lang": "es", "value": "En el controlador de AP WLAN, existe una posible corrupci\u00f3n de memoria debido a un desbordamiento de b\u00fafer en el heap. Esto podr\u00eda conducir a una ejecuci\u00f3n de c\u00f3digo remota (pr\u00f3xima/adyacente) con privilegios de ejecuci\u00f3n de usuario necesarios. No se necesita interacci\u00f3n del usuario para la explotaci\u00f3n. ID del parche: WCNCR00480138; ID del problema: MSV-6295."}], "id": "CVE-2026-20452", "lastModified": "2026-07-22T07:10:00.107", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20452", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-01T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-06-01T04:16:21.753", "references": [{"source": "security@mediatek.com", "tags": ["Vendor Advisory"], "url": "https://corp.mediatek.com/product-security-bulletin/June-2026"}], "sourceIdentifier": "security@mediatek.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "security@mediatek.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT6890"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7615"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7915"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7916"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7981"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7986"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7990"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7992"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7993"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "MediaTek chipset", "source": "cna", "vendor": "MediaTek, Inc."}, "product": "mediatek_chipset", "vendor": "mediatek,_inc."}], "created": "2026-06-01T05:30:20.626784+00:00", "updated": "2026-06-01T14:00:16.967718+00:00", "vendors": ["mediatek,_inc.", "mediatek,_inc.$PRODUCT$mediatek_chipset"]}