How severe is CVE-2006-2403?

CVE-2006-2403 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-2403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2403?

CVE-2006-2403 primarily affects Filezilla. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-2403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-2403 published?

CVE-2006-2403 was published on 2006-05-16 and last updated on 2026-06-16.

CVE-2006-2403

CVE-2006-2403 is a high-severity vulnerability in Filezilla with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Filezilla
Published: 2006-05-16
Last modified: 2026-06-16

Description

Buffer overflow in FileZilla before 2.2.23 allows remote attackers to execute arbitrary commands via unknown attack vectors.

Frequently asked questions

What is CVE-2006-2403?: Buffer overflow in FileZilla before 2.2.23 allows remote attackers to execute arbitrary commands via unknown attack vectors.
How severe is CVE-2006-2403?: CVE-2006-2403 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-2403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2403?: CVE-2006-2403 primarily affects Filezilla. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-2403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-2403 published?: CVE-2006-2403 was published on 2006-05-16 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:filezilla:filezilla:2.2.14b:*:*:*:*:*:*:*
cpe:2.3:a:filezilla:filezilla:2.2.15:*:*:*:*:*:*:*
cpe:2.3:a:filezilla:filezilla:2.2.22:*:*:*:*:*:*:*

More vulnerabilities in Filezilla

CVE-2007-2318 — Critical (CVSS 9.3): Multiple format string vulnerabilities in FileZilla before 2.2.32 allow remote attackers to execute arbitrary code via…
CVE-2007-0315 — Critical (CVSS 9.3): Multiple buffer overflows in FileZilla before 2.2.30a allow remote attackers to execute arbitrary code or cause a…
CVE-2007-0317 — High (CVSS 7.5): Format string vulnerability in the LogMessage function in FileZilla before 3.0.0-beta5 allows remote attackers to cause…
CVE-2005-2898 — Medium (CVSS 4.6): NOTE: this issue has been disputed by the vendor. FileZilla 2.2.14b and 2.2.15, and possibly earlier versions, when…
CVE-2006-6564 — Medium (CVSS 4.0): FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to…

All CVEs affecting Filezilla →