FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote…
Priority LOW 27CWE-835Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-835.
Summary
FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uploads or directory listings.
Why it matters now
EPSS 0.0219 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:filezilla-project:filezilla_server:*:*:*:*:*:*:*:* | before 0.9.6 | Vulnerable | Filezilla-Project |
- cpe:2.3:a:filezilla-project:filezilla_server:*:*:*:*:*:*:*:* Versions before 0.9.6 Vulnerable ·Filezilla-Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2005-0851
- 2026-10-03 Alias added: GHSA-p4rv-2523-rg59
References
More Filezilla-Project Filezilla Server vulnerabilities
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2014-00217 OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly… CVSS 3.1HIGH 7.4
- TI-2006-06309 FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 4.0
- TI-2005-00793 FileZilla FTP server before 0.9.6 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
- TI-2009-00842 Buffer overflow in FileZilla Server before 0.9.31 allows remote attackers to cause a… CVSS 2.0MEDIUM 4.3
- TI-2015-07931 FileZilla Server PORT confused deputy CVSS 3.1MEDIUM 4.3
Sources
- CVE-2005-0851 · CVE Program
- CVE-2005-0851 · NVD
- FIRST EPSS
- GHSA-p4rv-2523-rg59 · GitHub Advisory Database · CC BY 4.0
- CVE-2005-0851 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences