CVE-2026-5121
Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 30, 2026
- Updated
- Oct 14, 2026
- Reserved
- Mar 30, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat |
|
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat |
|
Red Hat OpenShift Container Platform 4.12Red Hat |
|
Red Hat OpenShift Container Platform 4.13Red Hat |
|
Red Hat OpenShift Container Platform 4.14Red Hat |
|
Red Hat OpenShift Container Platform 4.15Red Hat |
|
Red Hat OpenShift Container Platform 4.16Red Hat |
|
Red Hat OpenShift Container Platform 4.17Red Hat |
|
Red Hat OpenShift Container Platform 4.18Red Hat |
|
Red Hat OpenShift Container Platform 4.19Red Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
RHEL-8 based Middleware ContainersRed Hat |
|
Cert Manager support for Red Hat OpenShift release 1.17Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.17Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.17Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.17Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.18Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.18Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.18Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.18Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.18Red Hat |
|
Cert Manager support for Red Hat OpenShift release 1.20Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.3Red Hat |
|
Red Hat AI Inference Server 3.3Red Hat |
|
Red Hat AI Inference Server 3.3Red Hat |
|
Red Hat AI Inference Server 3.3Red Hat |
|
Red Hat Discovery 2Red Hat |
|
Red Hat Hardened ImagesRed Hat |
|
Red Hat Insights proxy 1.5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Update Infrastructure 5Red Hat |
|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat |
References
- RHSA-2026:10065vendor-advisory
- RHSA-2026:10097vendor-advisory
- RHSA-2026:11768vendor-advisory
- RHSA-2026:12071vendor-advisory
- RHSA-2026:12274vendor-advisory
- RHSA-2026:13812vendor-advisory
- RHSA-2026:14773vendor-advisory
- RHSA-2026:14937vendor-advisory
- RHSA-2026:15087vendor-advisory
- RHSA-2026:16008vendor-advisory
- RHSA-2026:16009vendor-advisory
- RHSA-2026:16030vendor-advisory
- RHSA-2026:16174vendor-advisory
- RHSA-2026:17596vendor-advisory
- RHSA-2026:19724vendor-advisory
- RHSA-2026:19725vendor-advisory
- RHSA-2026:20040vendor-advisory
- RHSA-2026:21690vendor-advisory
- RHSA-2026:25096vendor-advisory
- RHSA-2026:72502vendor-advisory
- RHSA-2026:82304vendor-advisory
- RHSA-2026:82322vendor-advisory
- RHSA-2026:82347vendor-advisory
- RHSA-2026:82354vendor-advisory
- RHSA-2026:82372vendor-advisory
- RHSA-2026:82857vendor-advisory
- RHSA-2026:82888vendor-advisory
- RHSA-2026:8510vendor-advisory
- RHSA-2026:8517vendor-advisory
- RHSA-2026:8521vendor-advisory
- RHSA-2026:8534vendor-advisory
- RHSA-2026:8864vendor-advisory
- RHSA-2026:8866vendor-advisory
- RHSA-2026:8867vendor-advisory
- RHSA-2026:8873vendor-advisory
- RHSA-2026:8908vendor-advisory
- RHSA-2026:8944vendor-advisory
- RHSA-2026:9026vendor-advisory
- RHSA-2026:9592vendor-advisory
- RHSA-2026:9832vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-5121vdb-entry
- RHBZ#2452945issue-tracking
- https://github.com/advisories/GHSA-2vwv-vqpv-v8vc
- https://github.com/libarchive/libarchive/pull/2934
- https://cert-portal.siemens.com/productcert/html/ssa-585531.html
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.