CVE-2010-4652

CVE-2010-4652 is a medium-severity vulnerability in Proftpd with a CVSS 2.0 base score of 6.8. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 11% (95th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Proftpd
• Published: 2011-02-02
• Last modified: 2026-06-16

Description

Heap-based buffer overflow in the sql_prepare_where function (contrib/mod_sql.c) in ProFTPD before 1.3.3d, when mod_sql is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted username containing substitution tags, which are not properly handled during construction of an SQL query.

Frequently asked questions

What is CVE-2010-4652?

Heap-based buffer overflow in the sql_prepare_where function (contrib/mod_sql.c) in ProFTPD before 1.3.3d, when mod_sql is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted username containing substitution tags, which are not properly handled during construction of an SQL query.

How severe is CVE-2010-4652?

CVE-2010-4652 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2010-4652 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4652?

CVE-2010-4652 primarily affects Proftpd. In total, 64 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4652?

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

When was CVE-2010-4652 published?

CVE-2010-4652 was published on 2011-02-02 and last updated on 2026-06-16.

References

• http://bugs.proftpd.org/show_bug.cgi?id=3536
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053537.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053540.html
• http://phrack.org/issues.html?issue=67&id=7#article
• http://proftpd.org/docs/RELEASE_NOTES-1.3.3d
• http://www.debian.org/security/2011/dsa-2191
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:023
• http://www.securityfocus.com/bid/44933
• http://www.vupen.com/english/advisories/2011/0248
• http://www.vupen.com/english/advisories/2011/0331
• https://bugzilla.redhat.com/show_bug.cgi?id=670170

Affected products (64)

• cpe:2.3:a:proftpd:proftpd:*:c:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:pre10:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:pre9:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.0:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.2:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.2:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.5:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.5:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.5:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.6:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.6:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.7:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.7:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.7:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.7:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.8:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.8:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.9:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.9:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.9:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.9:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.10:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.10:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.10:rc2:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.2.10:rc3:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.3.0:a:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.3.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:proftpd:proftpd:1.3.0:rc2:*:*:*:*:*:*

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