Integer Overflow Vulnerability in BusyBox Affecting Storage Management
CVE-2026-124746

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 6
Red Hat Hardened Images
Vendor
CVE Published:
11 November 2026

What is CVE-2026-124746?

An integer overflow vulnerability has been identified in the volume_id component of BusyBox, which affects how buffer boundaries are calculated during the probing of filesystem metadata. This flaw can be exploited when a specially crafted filesystem image is presented on an attached storage device. Utilities such as blkid, findfs, or mount may crash upon invocation, leading to a Denial of Service (DoS) scenario that disrupts the system's ability to resolve or mount storage devices, posing significant operational challenges for users.

References

https://access.redhat.com/security/cve/CVE-2026-124746
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2571675
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank ducanhluu for reporting this issue.
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