CVE-2026-124746

Busybox: out-of-bounds read in volume_id_get_buffer() via an offset+length wraparound

Published Nov 11, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in BusyBox. An integer overflow occurs in the volume_id component when calculating buffer boundaries while probing filesystem metadata. An attacker can exploit this vulnerability by providing a specially crafted filesystem image on an attached storage device. When probed by utilities such as blkid, findfs, or mount, the application crashes, resulting in a Denial of Service (DoS) that prevents the system from resolving or mounting storage devices.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Busybox
Busybox busybox
Red Hat
Red Hat enterprise Linux
Redhat enterprise Linux
Redhat hardened Images
Vendors & Products Busybox
Busybox busybox
Red Hat
Red Hat enterprise Linux
Redhat enterprise Linux
Redhat hardened Images
Type Values Removed Values Added
Description A flaw was found in BusyBox. An integer overflow occurs in the volume_id component when calculating buffer boundaries while probing filesystem metadata. An attacker can exploit this vulnerability by providing a specially crafted filesystem image on an attached storage device. When probed by utilities such as blkid, findfs, or mount, the application crashes, resulting in a Denial of Service (DoS) that prevents the system from resolving or mounting storage devices.
Title Busybox: out-of-bounds read in volume_id_get_buffer() via an offset+length wraparound
First Time appeared Redhat
Redhat hummingbird
Redhat rhel Els
Weaknesses CWE-190
CPEs cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:rhel_els:6
Vendors & Products Redhat
Redhat hummingbird
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 13, 2026, 5:15 PM
Reserved
Nov 9, 2026, 11:36 AM
Status
Awaiting Analysis
Published
Nov 11, 2026, 3:17 PM
Modified
Nov 13, 2026, 6:17 PM
Severity
Moderate
Public date
Nov 11, 2026, 9:15 AM