CVE-2026-20469

{"id": "CVE-2026-20469", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20469", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-04T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 0.8}]}, "affected": [{"source": "security@mediatek.com", "affectedData": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT8186"}, {"status": "affected", "version": "MT8188"}, {"status": "affected", "version": "MT8195"}, {"status": "affected", "version": "MT8365"}, {"status": "affected", "version": "MT8370"}, {"status": "affected", "version": "MT8371"}, {"status": "affected", "version": "MT8390"}, {"status": "affected", "version": "MT8391"}, {"status": "affected", "version": "MT8395"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-03T03:16:41.823", "references": [{"url": "https://www.mediatek.com/product-security-bulletin/August-2026", "source": "security@mediatek.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@mediatek.com", "description": [{"lang": "en", "value": "CWE-123"}]}], "descriptions": [{"lang": "en", "value": "In trusted_mem, there is a possible escalation of privilege due to improper input validation. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. Patch ID: AUTO00834868; Issue ID: MSV-6533."}], "lastModified": "2026-08-28T21:28:17.300", "sourceIdentifier": "security@mediatek.com"}