CVE-2007-4727

N/A Unknown
Published: September 12, 2007 Modified: April 23, 2026
View on NVD

Description

Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote attackers to overwrite arbitrary CGI variables and execute arbitrary code via an HTTP request with a long content length, as demonstrated by overwriting the SCRIPT_FILENAME variable, aka a "header overflow."

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://fedoranews.org/updates/FEDORA-2007-213.shtml
Source: cve@mitre.org
http://secunia.com/advisories/26732
Source: cve@mitre.org
Vendor Advisory
http://secunia.com/advisories/26794
Source: cve@mitre.org
http://secunia.com/advisories/26824
Source: cve@mitre.org
http://secunia.com/advisories/26997
Source: cve@mitre.org
http://secunia.com/advisories/27229
Source: cve@mitre.org
http://securityreason.com/securityalert/3127
Source: cve@mitre.org
http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/
Source: cve@mitre.org
http://trac.lighttpd.net/trac/changeset/1986
Source: cve@mitre.org
http://www.gentoo.org/security/en/glsa/glsa-200709-16.xml
Source: cve@mitre.org
http://www.lighttpd.net/assets/2007/9/9/lighttpd_sa_2007_12.txt
Source: cve@mitre.org
http://www.novell.com/linux/security/advisories/2007_20_sr.html
Source: cve@mitre.org
http://www.securityfocus.com/archive/1/479763/100/0/threaded
Source: cve@mitre.org
http://www.securityfocus.com/bid/25622
Source: cve@mitre.org
http://www.vupen.com/english/advisories/2007/3110
Source: cve@mitre.org
https://bugzilla.redhat.com/show_bug.cgi?id=284511
Source: cve@mitre.org
https://exchange.xforce.ibmcloud.com/vulnerabilities/36526
Source: cve@mitre.org
https://issues.rpath.com/browse/RPL-1715
Source: cve@mitre.org
http://fedoranews.org/updates/FEDORA-2007-213.shtml
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26732
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/26794
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26824
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26997
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/27229
Source: af854a3a-2127-422b-91ae-364da2661108
http://securityreason.com/securityalert/3127
Source: af854a3a-2127-422b-91ae-364da2661108
http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/
Source: af854a3a-2127-422b-91ae-364da2661108
http://trac.lighttpd.net/trac/changeset/1986
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.gentoo.org/security/en/glsa/glsa-200709-16.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.lighttpd.net/assets/2007/9/9/lighttpd_sa_2007_12.txt
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.novell.com/linux/security/advisories/2007_20_sr.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/479763/100/0/threaded
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/25622
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2007/3110
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=284511
Source: af854a3a-2127-422b-91ae-364da2661108
https://exchange.xforce.ibmcloud.com/vulnerabilities/36526
Source: af854a3a-2127-422b-91ae-364da2661108
https://issues.rpath.com/browse/RPL-1715
Source: af854a3a-2127-422b-91ae-364da2661108

36 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
12.9%
96th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

lighttpd

Related CVEs

CVE-2026-40941 N/A
CVE-2026-40084 6.5
CVE-2026-40083 7.2
CVE-2026-40082 5.4
CVE-2026-40080 6.1