CVE-2026-20419

{"id": "CVE-2026-20419", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20419", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-05T16:11:25.115269Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@mediatek.com", "affectedData": [{"vendor": "MediaTek, Inc.", "product": "MediaTek chipset", "versions": [{"status": "affected", "version": "MT6890"}, {"status": "affected", "version": "MT6989TB"}, {"status": "affected", "version": "MT7902"}, {"status": "affected", "version": "MT7915"}, {"status": "affected", "version": "MT7916"}, {"status": "affected", "version": "MT7920"}, {"status": "affected", "version": "MT7921"}, {"status": "affected", "version": "MT7922"}, {"status": "affected", "version": "MT7925"}, {"status": "affected", "version": "MT7927"}, {"status": "affected", "version": "MT7981"}, {"status": "affected", "version": "MT7986"}, {"status": "affected", "version": "MT8196"}, {"status": "affected", "version": "MT8668"}, {"status": "affected", "version": "MT8676"}, {"status": "affected", "version": "MT8678"}, {"status": "affected", "version": "MT8775"}, {"status": "affected", "version": "MT8791T"}, {"status": "affected", "version": "MT8792"}, {"status": "affected", "version": "MT8793"}, {"status": "affected", "version": "MT8796"}, {"status": "affected", "version": "MT8873"}, {"status": "affected", "version": "MT8883"}, {"status": "affected", "version": "MT8893"}, {"status": "affected", "version": "MT8910"}], "defaultStatus": "unaffected"}]}], "published": "2026-02-02T09:15:56.990", "references": [{"url": "https://corp.mediatek.com/product-security-bulletin/February-2026", "tags": ["Vendor Advisory"], "source": "security@mediatek.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@mediatek.com", "description": [{"lang": "en", "value": "CWE-754"}]}], "descriptions": [{"lang": "en", "value": "In wlan AP/STA firmware, there is a possible system becoming irresponsive due to an uncaught exception. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461663 / WCNCR00463309; Issue ID: MSV-4852."}, {"lang": "es", "value": "En el firmware de AP/STA de WLAN, existe una posible falta de respuesta del sistema debido a una excepci\u00f3n no capturada. Esto podr\u00eda llevar a una denegaci\u00f3n de servicio remota (proximal/adyacente) sin necesidad de privilegios de ejecuci\u00f3n adicionales. No se necesita interacci\u00f3n del usuario para la explotaci\u00f3n. ID de parche: WCNCR00461663 / WCNCR00463309; ID de problema: MSV-4852."}], "lastModified": "2026-06-17T10:17:24.027", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4926CFD0-C88C-4A5A-8396-A719C52818B1", "versionEndIncluding": "3.6"}, {"criteria": "cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0DD86CC1-BD46-42D2-9112-190CCAC96B30", "versionEndIncluding": "7.6.7.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "171D1C08-F055-44C0-913C-AA2B73AF5B72"}, {"criteria": "cpe:2.3:h:mediatek:mt6989tb:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8824BD65-5AB4-4D5F-94C3-3CEA09D0A497"}, {"criteria": "cpe:2.3:h:mediatek:mt7902:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "91DEA745-47A8-43F1-A1B2-F53F651A99EF"}, {"criteria": "cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3AB22996-9C22-4B6C-9E94-E4C055D16335"}, {"criteria": "cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DD5AA441-5381-4179-89EB-1642120F72B4"}, {"criteria": "cpe:2.3:h:mediatek:mt7920:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "140DAC08-96E9-47D3-BC2E-65E999DCFD50"}, {"criteria": "cpe:2.3:h:mediatek:mt7921:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "32AFEA0A-FFE2-4EA9-8B51-7E3E75DE65CC"}, {"criteria": "cpe:2.3:h:mediatek:mt7922:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "EA2A6813-7138-441E-A9E4-FF62FCBD797A"}, {"criteria": "cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "27CFC9DF-2F4C-469A-8A19-A260B1134CFE"}, {"criteria": "cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "05525018-AFE0-415C-A71C-A77922C7D637"}, {"criteria": "cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "490CD97B-021F-4350-AEE7-A2FA866D5889"}, {"criteria": "cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "40A9E917-4B34-403F-B512-09EEBEA46811"}, {"criteria": "cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FB0C4D80-28BC-4C4D-B522-AD9EC5222A2E"}, {"criteria": "cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2589C222-3D62-4BDB-98F2-5F1E38600D8D"}, {"criteria": "cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "EE302F6F-170E-4350-A8F4-65BE0C50CB78"}, {"criteria": "cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "152A5F3D-8004-4649-BDB1-E6F0798AF1CB"}, {"criteria": "cpe:2.3:h:mediatek:mt8775:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE5FB550-7264-4879-BAF9-6798949113AF"}, {"criteria": "cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1BB05B1D-77C9-4E42-91AD-9F087413DC20"}, {"criteria": "cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "336FC69E-E89F-4642-B6B9-8009D9A2BD52"}, {"criteria": "cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2FBD3487-F8CE-406C-8BD7-DD57FF8CD60B"}, {"criteria": "cpe:2.3:h:mediatek:mt8796:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE933AD9-3A6F-421B-8AB3-C45F8DEA9548"}, {"criteria": "cpe:2.3:h:mediatek:mt8873:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D6DD525F-7050-42BD-829D-1121698B8009"}, {"criteria": "cpe:2.3:h:mediatek:mt8883:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "23DD8281-FEB4-4E23-8DDA-680FF895F12E"}, {"criteria": "cpe:2.3:h:mediatek:mt8893:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "CCFAADB1-C2B2-47A6-BB66-761B964E7DFB"}, {"criteria": "cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8C81BC81-1358-4005-8D35-92428D052A65"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4FA469E2-9E63-4C9A-8EBA-10C8C870063A"}, {"criteria": "cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0133207-2EED-4625-854F-8DB7770D5BF7"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "171D1C08-F055-44C0-913C-AA2B73AF5B72"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@mediatek.com"}