How severe is CVE-2006-6563?

CVE-2006-6563 has a CVSS 2.0 base score of 6.6, rated medium severity.

Is CVE-2006-6563 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6563?

CVE-2006-6563 primarily affects Proftpd Project Proftpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-6563?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-6563 published?

CVE-2006-6563 was published on 2006-12-15 and last updated on 2026-06-16.

CVE-2006-6563

CVE-2006-6563 is a medium-severity vulnerability in Proftpd Project Proftpd with a CVSS 2.0 base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 6.6)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Proftpd Project Proftpd
Published: 2006-12-15
Last modified: 2026-06-16

Description

Stack-based buffer overflow in the pr_ctrls_recv_request function in ctrls.c in the mod_ctrls module in ProFTPD before 1.3.1rc1 allows local users to execute arbitrary code via a large reqarglen length value.

Frequently asked questions

What is CVE-2006-6563?: Stack-based buffer overflow in the pr_ctrls_recv_request function in ctrls.c in the mod_ctrls module in ProFTPD before 1.3.1rc1 allows local users to execute arbitrary code via a large reqarglen length value.
How severe is CVE-2006-6563?: CVE-2006-6563 has a CVSS 2.0 base score of 6.6, rated medium severity.
Is CVE-2006-6563 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6563?: CVE-2006-6563 primarily affects Proftpd Project Proftpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6563?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6563 published?: CVE-2006-6563 was published on 2006-12-15 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:proftpd_project:proftpd:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.3.0a:*:*:*:*:*:*:*

More vulnerabilities in Proftpd Project Proftpd

CVE-2006-5815 — Critical (CVSS 10.0): Stack-based buffer overflow in the sreplace function in ProFTPD 1.3.0 and earlier allows remote attackers, probably…
CVE-2003-0500 — Critical (CVSS 10.0): SQL injection vulnerability in the PostgreSQL authentication module (mod_sql_postgres) for ProFTPD before 1.2.9rc1…
CVE-1999-0911 — Critical (CVSS 10.0): Buffer overflow in ProFTPD, wu-ftpd, and beroftpd allows remote attackers to gain root access via a series of MKD and…
CVE-1999-0368 — Critical (CVSS 10.0): Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access, a.k.a. palmetto.
CVE-2003-0831 — Critical (CVSS 9.0): ProFTPD 1.2.7 through 1.2.9rc2 does not properly translate newline characters when transferring files in ASCII mode,…
CVE-2009-0542 — High (CVSS 7.5): SQL injection vulnerability in ProFTPD Server 1.3.1 through 1.3.2rc2 allows remote attackers to execute arbitrary SQL…

All CVEs affecting Proftpd Project Proftpd →