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libarchive EUVD-2026-17073

| CVE-2026-5121 HIGH
Integer Overflow or Wraparound (CWE-190)
2026-03-30 redhat
7.5
CVSS 3.1
Temporal: 9.8
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

14
Analysis Updated
Apr 22, 2026 - 07:27 vuln.today
v8 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 14:27 vuln.today
v7 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 09:44 vuln.today
v6 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 06:27 vuln.today
v5 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 05:27 vuln.today
v4 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 04:31 vuln.today
v3 (cvss_changed)
Analysis Updated
Apr 20, 2026 - 03:27 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 16, 2026 - 17:22 vuln.today
cvss_changed
Severity Changed
Apr 14, 2026 - 16:22 NVD
CRITICAL HIGH
CVSS changed
Apr 14, 2026 - 16:22 NVD
9.8 (CRITICAL) 7.5 (HIGH)
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 30, 2026 - 08:15 euvd
EUVD-2026-17073
Analysis Generated
Mar 30, 2026 - 08:15 vuln.today
CVE Published
Mar 30, 2026 - 07:47 nvd
CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

Remote code execution in libarchive on 32-bit systems allows unauthenticated attackers to execute arbitrary code via specially crafted ISO9660 images. The vulnerability affects Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4, with vendor patches released across multiple RHSA advisories. …

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RemediationAI

Within 24 hours: Inventory all systems running RHEL 6-10 and OpenShift 4 with libarchive installed; identify Internet-facing deployments processing ISO/archive files. Within 7 days: Apply vendor-released patches from applicable RHSA advisories (check Red Hat Security Advisory for specific RHEL version patches); prioritize OpenShift Container Platform 4 nodes and any systems that accept untrusted archive uploads. …

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Vendor StatusVendor

Debian

libarchive
Release Status Fixed Version Urgency
bullseye vulnerable 3.4.3-2+deb11u1 -
bullseye (security) vulnerable 3.4.3-2+deb11u3 -
bookworm vulnerable 3.6.2-1+deb12u3 -
bookworm (security) vulnerable 3.6.2-1+deb12u2 -
trixie vulnerable 3.7.4-4 -
forky, sid vulnerable 3.8.5-1 -
(unstable) fixed (unfixed) -

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EUVD-2026-17073 vulnerability details – vuln.today

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