CVE-2019-25683

MEDIUM

FileZilla 3.40.0 Denial of Service via Local Search

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25683. PoCs published by Mr Winst0n.

AI-analyzed exploit summary The exploit demonstrates a Denial of Service (DoS) vulnerability in FileZilla 3.40.0 by crafting a malformed path string with a large buffer of 'A' characters, causing the application to crash when processed in the 'Local search' or 'Local site' functionality.

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.

Exploits (1)

exploitdb WORKING POC
by Mr Winst0n · textdoslinux
https://www.exploit-db.com/exploits/46484

The exploit demonstrates a Denial of Service (DoS) vulnerability in FileZilla 3.40.0 by crafting a malformed path string with a large buffer of 'A' characters, causing the application to crash when processed in the 'Local search' or 'Local site' functionality.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FileZilla 3.40.0
No auth needed
Prerequisites: FileZilla 3.40.0 installed · ability to paste crafted input into the application
devstral-2 · analyzed Apr 07, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory third-party-advisory
VulnCheck Advisory: FileZilla 3.40.0 Denial of Service via Local Search
https://www.vulncheck.com/advisories/filezilla-denial-of-service-via-local-search
Exploit exploit
ExploitDB-46484
https://www.exploit-db.com/exploits/46484
Product product
Official Product Homepage
https://filezilla-project.org

Scores

CVSS v3 6.2
EPSS 0.0017
EPSS Percentile 6.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-532
Status published
Products (2)
Filezilla-Project/FileZilla 3.40.0
filezilla-project/filezilla_client 3.40.0
Published Apr 05, 2026
Tracked Since Apr 06, 2026