CVE-2006-6565

Q: How do I fix CVE-2006-6565?

Upgrade filezilla server to 0.9.22 or later.

Q: Is CVE-2006-6565 being actively exploited?

Not that we know of. CVE-2006-6565 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 71.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

Q: How severe is CVE-2006-6565?

CVE-2006-6565 has a CVSS v2 base score of 4.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2006-6565 affect?

Published advisories record a fix for filezilla server (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUMEPSS 99th pctl

4.0

CVSS v2

NVD

Description

FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) NLST commands, which results in a NULL pointer dereference, a different set of vectors than CVE-2006-6564. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

filezilla serverNVD

Affected:< 0.9.22Fixed in:0.9.22CVE-2006-6565derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

71.50%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Exploit1

exploit-db.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	93%	-	Fix
CVE-2023-21547	High	7.5	89%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

Common questions

How do I fix CVE-2006-6565?

Upgrade filezilla server to 0.9.22 or later.

Is CVE-2006-6565 being actively exploited?

Not that we know of. CVE-2006-6565 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 71.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2006-6565?

CVE-2006-6565 has a CVSS v2 base score of 4.0, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2006-6565 affect?

Published advisories record a fix for filezilla server (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2006-6565

Markdown

[![CVE-2006-6565](https://tridentstack.com/cve/badge/CVE-2006-6565.svg)](https://tridentstack.com/cve/CVE-2006-6565)

HTML

<a href="https://tridentstack.com/cve/CVE-2006-6565"><img src="https://tridentstack.com/cve/badge/CVE-2006-6565.svg" alt="CVE-2006-6565"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.