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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.

PUBLISHED Reserved 2026-04-05 | Published 2026-04-05 | Updated 2026-04-06 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Insertion of Sensitive Information into Log File

Product status

3.40.0
affected

Credits

Mr Winst0n finder

References

www.exploit-db.com/exploits/46484 (ExploitDB-46484) exploit

filezilla-project.org (Official Product Homepage) product

www.vulncheck.com/...illa-denial-of-service-via-local-search (VulnCheck Advisory: FileZilla 3.40.0 Denial of Service via Local Search) third-party-advisory

cve.org (CVE-2019-25683)

nvd.nist.gov (CVE-2019-25683)

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