Servers and applications
CVE-2007-2509 CRLF injection vulnerability in the ftp_putcmd function in PHP before 4.4.7, and 5.x before 5.2.2 allows remote attackers to inject arbitrary FTP commands via CRLF sequences in the parameters to earlier FTP commands.
Severity Low 2.6
Published 9 May 2007
Last changed 16 Jun 2026
Added to UpHeron 14 Oct 2026 Exploit chance 2.1% in the next 30 daysHigher than 81% of CVEs. EPSS by FIRST , 12 Nov 2026
Attack Over the network · Only under certain conditions · No login needed
Attacker can Change some data
CVSS vector AV:N/AC:H/Au:N/C:N/I:P/A:N
Sources NVD Affected software Software Affected versions PHPServers and applications · cpe:a:php:php Version 5.2.1 Version 5.2.0 Version 5.1.6 Version 5.1.5 All 59 release lines Version 4.0.0 Version 4.0.1 Version 4.0.1-patch1 Version 4.0.1-patch2 Version 4.0.2 Version 4.0.3 Version 4.0.3-patch1 Version 4.0.4 Version 4.0.4-patch1 Version 4.0.5 Version 4.0.6 Version 4.0.7-rc1 Version 4.0.7-rc2 Version 4.0.7-rc3 Version 4.0.7 Version 4.1.0 Version 4.1.1 Version 4.1.2 Version 4.2.0 Version 4.2.1 Version 4.2.2 Version 4.2.3 Version 4.3.0 Version 4.3.1 Version 4.3.2 Version 4.3.3 Version 4.3.4 Version 4.3.5 Version 4.3.6 Version 4.3.7 Version 4.3.8 Version 4.3.9 Version 4.3.10 Version 4.3.11 Version 4.4.0 Version 4.4.1 Version 4.4.2 Version 4.4.3 Version 4.4.4 Version 4.4.5 Version 4.4.6 Version 5.0-rc1 Version 5.0-rc2 Version 5.0-rc3 Version 5.0.0 Version 5.0.1 Version 5.0.2 Version 5.0.3 Version 5.0.4 Version 5.0.5 Version 5.1.0 Version 5.1.1 Version 5.1.2 Version 5.1.3 Version 5.1.4 Version 5.1.5 Version 5.1.6 Version 5.2.0 Version 5.2.1
References NVD https://nvd.nist.gov/vuln/detail/CVE-2007-2509 CVE.org https://www.cve.org/CVERecord?id=CVE-2007-2509