Integer overflow in vsftpd - CVE-2025-14242
Published: January 15, 2026
Vulnerability identifier: #VU121564
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-14242
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: vsftpd
Affected software:
vsftpd
vsftpd
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service attack.
The vulnerability exists due to integer overflow when parsing parameters of the ls" command. A remote authenticated user can execute a specially crafted command on the server and perform a denial of service attack.
How to mitigate CVE-2025-14242
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.