CVE-2026-124742

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Source
https://cve.org/CVERecord?id=CVE-2026-124742
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-124742.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-124742
Downstream
Published
2026-11-11T11:19:54Z
Modified
2026-11-13T02:46:56Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Busybox: divide-by-zero in the volume_id fat prober via a zero sectors_per_cluster value
Details

A flaw was found in BusyBox. The volume identification component fails to properly validate cluster parameters when analyzing specially formatted FAT filesystems. An attacker able to present a crafted storage device or disk image can trigger a divide-by-zero condition when partition scanning utilities inspect the volume. This issue causes the probing utilities to crash unexpectedly, resulting in a Denial of Service (DoS) that can disrupt device discovery and system boot operations.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-369"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124742.json"
}
References

Affected packages

Git / github.com/vda-linux/busybox_mirror

Affected ranges

Type
GIT
Repo
https://github.com/vda-linux/busybox_mirror
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b7c89c4
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "b7c89c4"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-124742.json"