CVE-2026-5121: Libarchive: arbitrary code execution via integer overflow in iso9660 image processing
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support
Vendor fix available · Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 65% of scored CVEs
DescriptionCVE.org
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.
Affected products20
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 8Versions not stated
- Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceVersions not stated
- Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsVersions not stated
- Red Hat · Red Hat Enterprise Linux 9Versions not stated
- Red Hat · Red Hat Enterprise Linux 9Versions not stated
- Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsVersions not stated
- Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsVersions not stated
- Red Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportVersions not stated
- Red Hat · Red Hat Enterprise Linux 9.6 Extended Update SupportVersions not stated
- Red Hat · Red Hat OpenShift Container Platform 4.12Versions not stated
- Red Hat · Red Hat OpenShift Container Platform 4.13Versions not stated
- Red Hat · Red Hat OpenShift Container Platform 4.14Versions not stated
- Red Hat · Red Hat OpenShift Container Platform 4.15Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Red Hat
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-5121 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-190cwe.mitre.org
- Vendor advisoryaccess.redhat.com
- Vendor advisoryaccess.redhat.com
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- Vendor advisoryaccess.redhat.com
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- Vendor advisoryaccess.redhat.com
28 more references are in the CVE record.