CVE-2026-20522

{"id": "CVE-2026-20522", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20522", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-05T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.5}]}, "affected": [{"source": "security@mediatek.com", "affectedData": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT6881"}, {"status": "affected", "version": "MT6993"}, {"status": "affected", "version": "MT8188"}, {"status": "affected", "version": "MT8189"}, {"status": "affected", "version": "MT8668"}, {"status": "affected", "version": "MT8781"}, {"status": "affected", "version": "MT8875"}, {"status": "affected", "version": "MT8910"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-05T02:16:50.793", "references": [{"url": "https://www.mediatek.com/product-security-bulletin/October-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 neuropilot, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249050; Issue ID: MSV-9172."}], "lastModified": "2026-10-08T15:39:53.847", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6881_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62A37FFA-30EF-4788-9EB5-E1202FA16C38"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6881:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9F7C1B31-4E33-4939-A926-79FE401368CB"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FAEB2240-FF37-4CBE-BBEF-8A8281153646"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "57E92BE0-5E65-4770-8E1A-0E5D07A38164"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8188_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "30E10DDB-6D3D-42CB-9DB9-ED25E6163D3D"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8188:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BA3D4A45-38EE-4125-AE67-89D1C707F95A"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8189_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "527C8F57-8492-49BF-BCA9-0D77011D3493"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8189:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AE35C440-2C15-42FF-ADD0-D99C0FB7D1C9"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EAACB56-716C-4E17-AB78-F5E68B75B791"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2589C222-3D62-4BDB-98F2-5F1E38600D8D"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7E2280E5-F903-4541-8404-9F789CEFF172"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "533284E5-C3AF-48D3-A287-993099DB2E41"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8875_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD8A54C8-5AA0-4CDB-BC78-269693782274"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8875:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "85431E0F-9B72-4ACB-B9FB-08C7ABAC4B6A"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A05E635E-9559-4899-A7BA-A74EB6501D1C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8C81BC81-1358-4005-8D35-92428D052A65"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@mediatek.com"}