Integer overflow in vsftpd - CVE-2025-14242

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Main Vulnerability Database Vulnerabilities #VU121564

Integer overflow in vsftpd - CVE-2025-14242

Published: January 15, 2026


Vulnerability identifier: #VU121564
CSH Severity: Medium
CVSS v4: 7.1 [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]
CVE-ID: CVE-2025-14242
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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. 


Affected software

vsftpd
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
openEuler
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
vsftpd (Red Hat package)
vsftpd
vsftpd-debuginfo
vsftpd-debugsource
vsftpd-help
vsftpd-doc

How to mitigate CVE-2025-14242

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

vsftpd (Red Hat package) - addressed in versions 3.0.3-31.el8_2.1, 3.0.3-33.el8_4.1, 3.0.3-35.el8_6.1, 3.0.3-35.el8_8.1, 3.0.3-36.el8_10.3, 3.0.3-49.el9_0.1, 3.0.5-4.el9_2.1, 3.0.5-5.el9_4.1, 3.0.5-6.el9_6.1, 3.0.5-6.el9_7.2, 3.0.5-9.el10_0.1, 3.0.5-10.el10_1.1
vsftpd - update to 3.0.3-33
vsftpd-debuginfo - update to 3.0.3-33
vsftpd-debugsource - update to 3.0.3-33
vsftpd-help - update to 3.0.3-33
vsftpd - addressed in versions 3.0.3-36.0.1, 3.0.5-3
vsftpd-doc - update to 3.0.5-3

External References

Related Security Bulletins