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vuln-cve/data/2026/42xxx/CVE-2026-42627.json
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{
"dataType": "CVE_RECORD",
"cveMetadata": {
"state": "PUBLISHED",
"cveId": "CVE-2026-42627",
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"dateUpdated": "2026-05-26T15:16:51.610Z",
"dateReserved": "2026-04-29T00:00:00.000Z",
"datePublished": "2026-05-22T00:00:00.000Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre",
"dateUpdated": "2026-05-22T17:40:29.276Z"
},
"descriptions": [
{
"lang": "en",
"value": "In Arm ArmNN through 2026-03-27, an integer overflow in TensorShape::GetNumElements() in armnn/Tensor.cpp allows a crafted TFLite model file to bypass buffer size validation and trigger a heap-based buffer over-read during model optimization. The overflow occurs when multiplying tensor dimensions using 32-bit unsigned arithmetic without overflow detection, causing GetNumBytes() to return an understated allocation size. During Optimize()->InferOutputShapes(), the BatchToSpaceNdLayer reads beyond the allocated buffer."
}
],
"tags": [
"unsupported-when-assigned"
],
"affected": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
],
"references": [
{
"url": "https://github.com/ARM-software/armnn/blob/main/src/armnn/Tensor.cpp"
},
{
"url": "https://github.com/ARM-software/armnn/blob/main/src/armnnTfLiteParser/TfLiteParser.cpp"
}
],
"problemTypes": [
{
"descriptions": [
{
"type": "text",
"lang": "en",
"description": "n/a"
}
]
}
]
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-190",
"lang": "en",
"description": "CWE-190 Integer Overflow or Wraparound"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.2,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/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": "2026-05-26T15:16:30.315213Z",
"id": "CVE-2026-42627",
"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": "2026-05-26T15:16:51.610Z"
}
}
]
},
"dataVersion": "5.2"
}