CVE-2026-5121

CVE-2026-5121 · Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

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.

CVSS 7.5 · High · EPSS 1.4% · Fix available

Published

2026-03-30T07:47:28.562Z

Updated

2026-10-14T19:24:20.226Z

Stack: system

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