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High 7.5Published Mar 30, 2026
CVE-2026-5121Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 7 Extended Lifecycle Support and 18 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
from 0:3.1.2-14.el7_9.2 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 0:3.3.3-7.el8_10 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_aus | from 0:3.3.2-8.el8_2.2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:3.3.3-1.el8_4.2 not affected | CNA record |
from 0:3.3.3-6.el8_6.1 not affected | CNA record | |
from 0:3.3.3-6.el8_6.1 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus | from 0:3.5.3-5.el9_4 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4.12 redhat:openshift | from 412.86.202604281506-0 not affected | CNA record |
Red Hat RHEL-8 based Middleware Containers redhat:rhosemc | from 7.13.5-4.1777325677 not affected | CNA record |
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 redhat:cert_manager | from 1791371080 not affected | CNA record |
Red Hat Red Hat AI Inference Server 3.2 redhat:ai_inference_server | from 1779223654 not affected | CNA record |
Red Hat Red Hat Discovery 2 redhat:discovery | from 1778156756 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | from 3.8.7-1.hum1 not affected | CNA record |
Red Hat Red Hat Insights proxy 1.5 redhat:insights_proxy | from 1776868961 not affected | CNA record |
Red Hat Red Hat Update Infrastructure 5 redhat:rhui | from 1776868774 not affected | CNA record |
Siemens SIDIS Secured SmartPlug siemens:sidis_secured_smartplug (from the name) | before V7.26.0310 | CISA ADP |
libarchive libarchive libarchive:libarchive | all versions | NVD |
redhat hardened_images redhat:hardened_images | all versions | NVD |
redhat openshift_container_platform redhat:openshift_container_platform | 4.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0; 8.0; 9.0; 10.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:10065vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:10097vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:11768vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:12071vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:12274vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:13812vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:14773vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:14937vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:15087vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:16008vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:16009vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:16030vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:16174vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:17596vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:19724vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:19725vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20040vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:21690vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:25096vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72502vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82304vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82322vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82347vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82354vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:82372vendor-advisory, x-refsource-redhat
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