CVE-2019-25683: FileZilla 3.40.0 Denial of Service via Local Search

Published Apr 5, 2026

Updated

FileZilla 3.40.0 contains a denial of service vulnerability in the local search functionality that allows local attackers to crash the application by supplying a malformed path string. Attackers can trigger the crash by entering a crafted path containing 384 'A' characters followed by 'BBBB' and 'CCCC' sequences in the search directory field and initiating a local search operation.

Affected Software

1 affected component

Filezilla-project Filezilla Client=3.40.0

Event History

Apr 5, 2026

CVE Published

via MITRE·08:45 PM

Data Sourced

via MITRE·08:45 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·09:16 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2019-25683?

CVE-2019-25683 is classified as a denial of service vulnerability that can crash the application.

How do I fix CVE-2019-25683?

To fix CVE-2019-25683, update FileZilla to a version later than 3.40.0.

Who is affected by CVE-2019-25683?

CVE-2019-25683 affects users of FileZilla version 3.40.0.

What type of attack does CVE-2019-25683 involve?

CVE-2019-25683 involves a local attacker exploiting a malformed path string.

What is the impact of CVE-2019-25683?

The impact of CVE-2019-25683 is the crashing of the FileZilla application, resulting in denial of service.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.