CVE-2026-5121

CRITICAL

9.8

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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/30/2026

Derniere modification3/31/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-190

References

https://access.redhat.com/security/cve/CVE-2026-5121(secalert@redhat.com)

https://github.com/libarchive/libarchive/pull/2934(secalert@redhat.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.