CVE-2026-5121
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-03-30 08:16:18.780000
Last modified
2026-11-05 22:18:49.677000
View original CVE JSON
{
"id": "CVE-2026-5121",
"sourceIdentifier": "[email protected]",
"published": "2026-03-30T08:16:18.780",
"lastModified": "2026-11-05T22:18:49.677",
"vulnStatus": "Modified",
"cveTags": [],
"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."
},
{
"lang": "es",
"value": "Se encontró un fallo en libarchive. En sistemas de 32 bits, existe una vulnerabilidad de desbordamiento de entero en la lógica de asignación de punteros de bloque zisofs. Un atacante remoto puede explotar esto al proporcionar una imagen ISO9660 especialmente diseñada, lo que puede llevar a un desbordamiento de búfer de pila. Esto podría permitir potencialmente la ejecución de código arbitrario en el sistema afectado."
}
],
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{
"source": "[email protected]",
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