{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20456", "assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "state": "PUBLISHED", "assignerShortName": "MediaTek", "dateReserved": "2025-11-03T01:30:59.014Z", "datePublished": "2026-06-01T03:20:14.379Z", "dateUpdated": "2026-06-01T03:20:14.379Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374", "shortName": "MediaTek", "dateUpdated": "2026-06-01T03:20:14.379Z"}, "descriptions": [{"lang": "en", "value": "In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338."}], "affected": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "defaultStatus": "unaffected", "versions": [{"version": "MT7902", "status": "affected"}, {"version": "MT7920", "status": "affected"}, {"version": "MT7921", "status": "affected"}, {"version": "MT7922", "status": "affected"}, {"version": "MT7925", "status": "affected"}, {"version": "MT7927", "status": "affected"}]}], "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/June-2026"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338."}], "id": "CVE-2026-20456", "lastModified": "2026-06-01T04:16:22.283", "metrics": {}, "published": "2026-06-01T04:16:22.283", "references": [{"source": "security@mediatek.com", "url": "https://corp.mediatek.com/product-security-bulletin/June-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": "MT7902"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7920"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7921"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7922"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7925"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT7927"}}], "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": "2026-06-01T05:30:20.626372+00:00", "title": "Missing Bounds Check in MediaTek WLAN Driver Leads to Local Denial of Service", "updated": "2026-06-01T05:30:20.997877+00:00", "vendors": ["mediatek,_inc.", "mediatek,_inc.$PRODUCT$mediatek_chipset"]}