CVE-2009-0542

Exp

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.

Published: 2009-02-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-0542 is rated High Exploit Risk (84.8/100): CVSS High severity, with high exploitation likelihood (EPSS 74.73%, 99th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +16.24% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-0542

EDB-ID Source Kind Published Link
32798 exploit_db edb 2009-02-10 Exploit-DB ↗
8037 exploit_db edb 2009-02-10 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-0542

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 58.49% 74.73% +16.24%
2 2026-01-01 29.68% 58.49% +28.81%
3 2025-05-01 — 29.68% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0542

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2009-0542

OS Trackers for CVE-2009-0542

vendor priority summary link
debian medium CVE-2009-0542 medium priority: Debian including 1 source packages (proftpd-dfsg), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-0542
gentoo normal CVE-2009-0542: 1 GLSA(s) (200903-27), 1 atom(s) (net-ftp/proftpd); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-0542
redhat critical — https://access.redhat.com/security/cve/CVE-2009-0542
ubuntu medium CVE-2009-0542 medium priority: Ubuntu including 1 source packages (proftpd-dfsg), 11 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): not-affected 5, ignored 4, DNE 1, released 1. https://ubuntu.com/security/CVE-2009-0542

Affected software / configurations for CVE-2009-0542

Vendor Product Version Raw CPE
proftpd_project proftpd 1.3.1 cpe:2.3:a:proftpd_project:proftpd:1.3.1:*:*:*:*:*:*:*
proftpd_project proftpd 1.3.2 cpe:2.3:a:proftpd_project:proftpd:1.3.2:*:*:*:*:*:*:*
proftpd_project proftpd 1.3.2_rc2 cpe:2.3:a:proftpd_project:proftpd:1.3.2_rc2:*:*:*:*:*:*:*

References for CVE-2009-0542

cvelogic Threat Intelligence