Vulnerability Details CVE-2026-5121
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 47.6%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-5121
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cpe:2.3:a:libarchive:libarchive:-
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cpe:2.3:a:redhat:hardened_images:-
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cpe:2.3:a:redhat:openshift_container_platform:4.0
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cpe:2.3:o:redhat:enterprise_linux:10.0
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cpe:2.3:o:redhat:enterprise_linux:6.0
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cpe:2.3:o:redhat:enterprise_linux:7.0
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cpe:2.3:o:redhat:enterprise_linux:8.0
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cpe:2.3:o:redhat:enterprise_linux:9.0