CVE-2026-5121

HIGH

Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing

Title source: cna

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.

References (17)

Scores

CVSS v3 7.5
EPSS 0.0010
EPSS Percentile 27.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-190
Status published
Products (35)
libarchive/libarchive
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:3.1.2-14.el7_9.2
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 8 0:3.3.3-7.el8_10
Red Hat/Red Hat Enterprise Linux 8.2 Advanced Update Support 0:3.3.2-8.el8_2.2
Red Hat/Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:3.3.3-1.el8_4.2
Red Hat/Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:3.3.3-1.el8_4.2
... and 25 more
Published Mar 30, 2026
Tracked Since Mar 30, 2026