CVE-2005-0851 — 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

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MEDIUM

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

Published Mar 24, 2005

5.0

MEDIUM

CVSS 2.0

EPSS 2.19%

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.19% 0.02190

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.02190

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	2.19% (0.02190)	81.77th	v5 (v2026.06.15)
Jun 15, 2026	2.19% (0.02190)	80.02th	v5 (v2026.06.15)
Mar 17, 2025	1.04% (0.01037)	75.86th	v4 (v2025.03.14)
Dec 12, 2024	0.16% (0.00159)	53.72th	v3 (v2023.03.01)
Jun 27, 2024	0.16% (0.00159)	52.62th	v3 (v2023.03.01)
Mar 7, 2023	0.16% (0.00159)	50.62th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-835

References (2)

http://sourceforge.net/project/shownotes.php?group_id=21558&release_id=314473
x_refsource_CONFIRMProductThird Party Advisory
http://www.securityfocus.com/bid/12865
vdb-entryx_refsource_BIDPatchThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://sourceforge.net/project/shownotes.php?group_id=21558&release_id=314473		x_refsource_CONFIRMProductThird Party Advisory
http://www.securityfocus.com/bid/12865		vdb-entryx_refsource_BIDPatchThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Mar 24, 2005

Updated Aug 7, 2024

Reserved Mar 24, 2005

Link CVE-2005-0851

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2005-0851

Red Hat

Severity n/a

Public date n/a

Links CVE-2005-0851