CVE-2026-124743

Busybox: divide-by-zero and heap over-read in the volume_id hfs+ prober

Published Nov 11, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in BusyBox. When processing filesystem metadata, the volume identification component does not properly validate header values in HFS+ filesystems. An attacker able to attach a storage device or supply a specially crafted filesystem image can trigger an application crash, resulting in a Denial of Service (DoS) and preventing device resolution.

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

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Description A flaw was found in BusyBox. When processing filesystem metadata, the volume identification component does not properly validate header values in HFS+ filesystems. An attacker able to attach a storage device or supply a specially crafted filesystem image can trigger an application crash, resulting in a Denial of Service (DoS) and preventing device resolution.
Title Busybox: divide-by-zero and heap over-read in the volume_id hfs+ prober
First Time appeared Redhat
Redhat hummingbird
Redhat rhel Els
Weaknesses CWE-369
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, 5:10 PM
Reserved
Nov 9, 2026, 11:36 AM
Status
Awaiting Analysis
Published
Nov 11, 2026, 12:19 PM
Modified
Nov 13, 2026, 6:17 PM
Severity
Moderate
Public date
Nov 11, 2026, 9:15 AM