How severe is CVE-2009-0542?

CVE-2009-0542 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-0542 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0542?

CVE-2009-0542 primarily affects Proftpd Project Proftpd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0542?

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-2009-0542 published?

CVE-2009-0542 was published on 2009-02-12 and last updated on 2026-06-16.

CVE-2009-0542

CVE-2009-0542 is a high-severity vulnerability in Proftpd Project Proftpd with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 77% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 77% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Proftpd Project Proftpd
Published: 2009-02-12
Last modified: 2026-06-16

Description

SQL injection vulnerability in ProFTPD Server 1.3.1 through 1.3.2rc2 allows remote attackers to execute arbitrary SQL commands via a "%" (percent) character in the username, which introduces a "'" (single quote) character during variable substitution by mod_sql.

Frequently asked questions

What is CVE-2009-0542?: SQL injection vulnerability in ProFTPD Server 1.3.1 through 1.3.2rc2 allows remote attackers to execute arbitrary SQL commands via a "%" (percent) character in the username, which introduces a "'" (single quote) character during variable substitution by mod_sql.
How severe is CVE-2009-0542?: CVE-2009-0542 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-0542 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0542?: CVE-2009-0542 primarily affects Proftpd Project Proftpd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0542?: 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-2009-0542 published?: CVE-2009-0542 was published on 2009-02-12 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:proftpd_project:proftpd:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:proftpd_project:proftpd:1.3.2_rc2:*:*:*:*:*:*:*

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