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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-25)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced
Affected
- libarchive:libarchive
- redhat:enterprise_linux
- redhat:hardened_images
- redhat:openshift_container_platform