CVE-2026-5121
Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka redhat, Red Hat
libarchive
oss-project
ООО «Ред Софт»
commercial·RUaka red soft
and 36 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Initial Access
References
https://access.redhat.com/errata/RHSA-2026:10065
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10097
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:11768
access.redhat.com
and 99 more references View all →
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