CVE-2026-124747
Busybox: heap buffer overflow in wget ftp resume when the resume offset exceeds the reported file size
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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).
| CWE | CWE-787 |
| Vendor | red hat |
| Product | red hat enterprise linux 6 |
| Published | Nov 10, 2026 |
Stay Ahead of the Next One
Get instant alerts for red hat red hat enterprise linux 6
Be the first to know when new high vulnerabilities affecting red hat red hat enterprise linux 6 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
Credits
Red Hat would like to thank Seokwoo Jang (AXGATE) for reporting this issue.