Vulnerability record
CVE-2026-124747
The short answer
CVE-2026-124747 affects Red Hat Red Hat Enterprise Linux 6 and is rated high (CVSS 7.5). It is not in CISA's Known Exploited Vulnerabilities catalog.
What it is
A flaw was found in BusyBox. When resuming a download over File Transfer Protocol (FTP), the wget utility fails to verify that the resume offset does not exceed the file size reported by the server, resulting in an integer calculation error. A malicious FTP server or an on-path network attacker can exploit this issue by returning crafted file size metadata, triggering a heap-based buffer overflow with attacker-controlled data. Successful exploitation may allow an attacker to execute arbitrary code or crash the application, resulting in a denial of service (DoS).
Weakness: CWE-787.
Severity
7.5 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Not listed
CISA lists confirmed exploitation only
EPSS, next 30 days
No score
FIRST scores CVEs within a day of publication
How it can be exploited
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Affected products
Red Hat Enterprise Linux 6, Red Hat Hardened Images. NVD's record lists the exact affected versions.
References
Questions
Is CVE-2026-124747 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-10.
How do I fix CVE-2026-124747?
Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Awaiting Analysis. The description is NVD's text, quoted as published.
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