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CVE-2026-5121 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-585531.html siemens-SADP
https://access.redhat.com/errata/RHSA-2026:10065 [email protected]
https://access.redhat.com/errata/RHSA-2026:10097 [email protected]
https://access.redhat.com/errata/RHSA-2026:11768 [email protected]
https://access.redhat.com/errata/RHSA-2026:12071 [email protected]

see all 37 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or WraparoundCISA-ADP
CWE-190Integer Overflow or Wraparound[email protected]

Affected Products

ProductVersions
libarchive libarchive
All versions

CPE

  • cpe:2.3:a:libarchive:libarchive:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat hardened images
All versions

CPE

  • cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat openshift container platform
4.0

CPE

  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
6.0
7.0
8.0
9.0
10.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

38 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-5121
NVD Published Date:
Mar 30, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-5121 Details - Not Deferred