CVE-2026-20453

{"id": "CVE-2026-20453", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 0.8}]}, "published": "2026-06-01T04:16:21.900", "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/June-2026", "tags": ["Vendor Advisory"], "source": "security@mediatek.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@mediatek.com", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In geniezone, there is a possible out of bounds write due to a missing bounds check. 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: ALPS10886526; Issue ID: MSV-6791."}], "lastModified": "2026-06-01T18:11:48.047", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "14B94ECB-CAD4-499C-8959-1713FC5CE423"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6739:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7FA8A390-9F52-4CF3-9B45-936CE3E2B828"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2493FB05-7723-4CDD-AC2A-8B21C4285436"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F726F486-A86F-4215-AD93-7A07A071844A"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": 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