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vuln-cve/data/2026/20xxx/CVE-2026-20403.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-20403",
"assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"state": "PUBLISHED",
"assignerShortName": "MediaTek",
"dateReserved": "2025-11-03T01:30:59.007Z",
"datePublished": "2026-02-02T08:14:45.891Z",
"dateUpdated": "2026-03-30T13:02:43.931Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek",
"dateUpdated": "2026-03-30T13:02:43.931Z"
},
"descriptions": [
{
"lang": "en",
"value": "In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01689254 (Note: For N15 and NR16) / MOLY01689259 (Note: For NR17 and NR17R); Issue ID: MSV-4843."
}
],
"affected": [
{
"vendor": "MediaTek, Inc.",
"product": "MediaTek chipset",
"defaultStatus": "unaffected",
"versions": [
{
"version": "MT2735",
"status": "affected"
},
{
"version": "MT2737",
"status": "affected"
},
{
"version": "MT6813",
"status": "affected"
},
{
"version": "MT6815",
"status": "affected"
},
{
"version": "MT6833",
"status": "affected"
},
{
"version": "MT6835",
"status": "affected"
},
{
"version": "MT6853",
"status": "affected"
},
{
"version": "MT6855",
"status": "affected"
},
{
"version": "MT6873",
"status": "affected"
},
{
"version": "MT6875",
"status": "affected"
},
{
"version": "MT6877",
"status": "affected"
},
{
"version": "MT6878",
"status": "affected"
},
{
"version": "MT6879",
"status": "affected"
},
{
"version": "MT6880",
"status": "affected"
},
{
"version": "MT6883",
"status": "affected"
},
{
"version": "MT6885",
"status": "affected"
},
{
"version": "MT6886",
"status": "affected"
},
{
"version": "MT6889",
"status": "affected"
},
{
"version": "MT6890",
"status": "affected"
},
{
"version": "MT6891",
"status": "affected"
},
{
"version": "MT6893",
"status": "affected"
},
{
"version": "MT6895",
"status": "affected"
},
{
"version": "MT6896",
"status": "affected"
},
{
"version": "MT6897",
"status": "affected"
},
{
"version": "MT6899",
"status": "affected"
},
{
"version": "MT6980",
"status": "affected"
},
{
"version": "MT6983",
"status": "affected"
},
{
"version": "MT6985",
"status": "affected"
},
{
"version": "MT6989",
"status": "affected"
},
{
"version": "MT6990",
"status": "affected"
},
{
"version": "MT6991",
"status": "affected"
},
{
"version": "MT6993",
"status": "affected"
},
{
"version": "MT8673",
"status": "affected"
},
{
"version": "MT8675",
"status": "affected"
},
{
"version": "MT8676",
"status": "affected"
},
{
"version": "MT8771",
"status": "affected"
},
{
"version": "MT8791",
"status": "affected"
},
{
"version": "MT8791T",
"status": "affected"
},
{
"version": "MT8795T",
"status": "affected"
},
{
"version": "MT8797",
"status": "affected"
},
{
"version": "MT8798",
"status": "affected"
},
{
"version": "MT8893",
"status": "affected"
}
]
}
],
"references": [
{
"url": "https://corp.mediatek.com/product-security-bulletin/February-2026"
}
],
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"lang": "en",
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write"
}
]
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-02-17T14:15:17.296300Z",
"id": "CVE-2026-20403",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-02-17T14:15:26.288Z"
}
}
]
}
}