CVE-2025-14242: Vsftpd: vsftpd: denial of service via integer overflow in ls command parameter parsing

Published Dec 8, 2025
·
Updated

A flaw was found in vsftpd. This vulnerability allows a denial of service (DoS) via an integer overflow in the ls command parameter parsing, triggered by a remote, authenticated attacker sending a crafted STAT command with a specific byte sequence.

Affected Software

1 affected component
vsftpd vsftpd

Event History

Dec 8, 2025
Data Sourced
via Red Hat·03:44 AM
DescriptionSeverityAffected Software
Jan 14, 2026
CVE Published
via MITRE·03:23 PM
Data Sourced
via MITRE·03:23 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-14242?

CVE-2025-14242 has a severity level rated as high due to its potential to cause denial of service.

2

How do I fix CVE-2025-14242?

To fix CVE-2025-14242, users should update vsftpd to the latest patched version provided by their vendor.

3

Who is affected by CVE-2025-14242?

CVE-2025-14242 affects users of the vsftpd software, particularly those allowing remote, authenticated access.

4

What type of attack does CVE-2025-14242 facilitate?

CVE-2025-14242 facilitates a denial of service attack through an integer overflow during command parameter parsing.

5

How can I mitigate the risk of CVE-2025-14242?

To mitigate the risk of CVE-2025-14242, restrict access to the vsftpd server and monitor logs for unusual activity.

Contact

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