CVE-2026-20470
Full vulnerability record from the local CVENow database.
Description
In Telephony, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11086431; Issue ID: MSV-8189.
Severity
MEDIUM
CVSS score
6.2
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-08-03 03:16:41.940000
Last modified
2026-10-30 03:16:40.077000
View original CVE JSON
{
"id": "CVE-2026-20470",
"sourceIdentifier": "[email protected]",
"published": "2026-08-03T03:16:41.940",
"lastModified": "2026-10-30T03:16:40.077",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Telephony, there is a possible information disclosure due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11086431; Issue ID: MSV-8189."
},
{
"lang": "es",
"value": "En Telefonía, existe una posible revelación de información debido a una verificación de permisos faltante. Esto podría llevar a una revelación de información local sin necesidad de privilegios de ejecución adicionales. No se necesita interacción del usuario para la explotación. ID del parche: ALPS11086431; ID del problema: MSV-8189."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "MediaTek, Inc.",
"product": "MediaTek chipset",
"defaultStatus": "unaffected",
"versions": [
{
"version": "MT6739",
"status": "affected"
},
{
"version": "MT6761",
"status": "affected"
},
{
"version": "MT6765",
"status": "affected"
},
{
"version": "MT6768",
"status": "affected"
},
{
"version": "MT6769",
"status": "affected"
},
{
"version": "MT6771",
"status": "affected"
},
{
"version": "MT6779",
"status": "affected"
},
{
"version": "MT6781",
"status": "affected"
},
{
"version": "MT6785",
"status": "affected"
},
{
"version": "MT6789",
"status": "affected"
},
{
"version": "MT6833",
"status": "affected"
},
{
"version": "MT6835",
"status": "affected"
},
{
"version": "MT6853",
"status": "affected"
},
{
"version": "MT6855",
"status": "affected"
},
{
"version": "MT6858",
"status": "affected"
},
{
"version": "MT6873",
"status": "affected"
},
{
"version": "MT6877",
"status": "affected"
},
{
"version": "MT6878",
"status": "affected"
},
{
"version": "MT6879",
"status": "affected"
},
{
"version": "MT6881",
"status": "affected"
},
{
"version": "MT6883",
"status": "affected"
},
{
"version": "MT6885",
"status": "affected"
},
{
"version": "MT6886",
"status": "affected"
},
{
"version": "MT6889",
"status": "affected"
},
{
"version": "MT6893",
"status": "affected"
},
{
"version": "MT6895",
"status": "affected"
},
{
"version": "MT6897",
"status": "affected"
},
{
"version": "MT6899",
"status": "affected"
},
{
"version": "MT6953",
"status": "affected"
},
{
"version": "MT6983",
"status": "affected"
},
{
"version": "MT6985",
"status": "affected"
},
{
"version": "MT6989",
"status": "affected"
},
{
"version": "MT6991",
"status": "affected"
},
{
"version": "MT6993",
"status": "affected"
},
{
"version": "MT6995",
"status": "affected"
},
{
"version": "MT8668",
"status": "affected"
},
{
"version": "MT8676",
"status": "affected"
},
{
"version": "MT8678",
"status": "affected"
},
{
"version": "MT8755",
"status": "affected"
},
{
"version": "MT8765",
"status": "affected"
},
{
"version": "MT8766",
"status": "affected"
},
{
"version": "MT8766R",
"status": "affected"
},
{
"version": "MT8768",
"status": "affected"
},
{
"version": "MT8775",
"status": "affected"
},
{
"version": "MT8781",
"status": "affected"
},
{
"version": "MT8792",
"status": "affected"
},
{
"version": "MT8796",
"status": "affected"
},
{
"version": "MT8798",
"status": "affected"
},
{
"version": "MT8863",
"status": "affected"
},
{
"version": "MT8873",
"status": "affected"
},
{
"version": "MT8883",
"status": "affected"
},
{
"version": "MT8893",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.5,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-03T19:40:49.613018Z",
"id": "CVE-2026-20470",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-926"
}
]
}
],
"references": [
{
"url": "https://www.mediatek.com/product-security-bulletin/August-2026",
"source": "[email protected]"
}
]
}