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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00012.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Filezilla-Project FileZilla affected
Version Status Constraints
3.40.0 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Filezilla-project Subscribe
Filezilla Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://filezilla-project.org cve-icon cve-icon
https://www.exploit-db.com/exploits/46484 cve-icon cve-icon
https://www.vulncheck.com/advisories/filezilla-denial-of-service-via-local-search cve-icon cve-icon
History

Sun, 05 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
Description 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.
Title FileZilla 3.40.0 Denial of Service via Local Search
First Time appeared Filezilla-project
Filezilla-project filezilla Server
Weaknesses CWE-532
CPEs cpe:2.3:a:filezilla-project:filezilla_server:3.40.0:*:*:*:*:*:*:*
Vendors & Products Filezilla-project
Filezilla-project filezilla Server
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-06T18:12:56.747Z

Reserved: 2026-04-05T15:16:49.556Z

Link: CVE-2019-25683

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-05T21:16:46.800

Modified: 2026-04-05T21:16:46.800

Link: CVE-2019-25683

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses