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vuln-cve/data/2026/5xxx/CVE-2026-5121.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-5121",
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"state": "PUBLISHED",
"assignerShortName": "redhat",
"dateReserved": "2026-03-30T07:39:27.352Z",
"datePublished": "2026-03-30T07:47:28.562Z",
"dateUpdated": "2026-11-05T21:17:49.872Z"
},
"containers": {
"cna": {
"title": "Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing",
"metrics": [
{
"other": {
"content": {
"value": "Moderate",
"namespace": "https://access.redhat.com/security/updates/classification/"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system."
}
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