CVE-2007-4727
MEDIUM · CVSS 6.8EPSS 12.9%EU EUVD
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."
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-119
- EPSS score
- 12.9% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-4708)
- Published
- September 12, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-4708 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- lighttpd / lighttpd
References
- http://fedoranews.org/updates/FEDORA-2007-213.shtml
- http://secunia.com/advisories/26732(Vendor Advisory)
- http://secunia.com/advisories/26794
- http://secunia.com/advisories/26824
- http://secunia.com/advisories/26997
- http://secunia.com/advisories/27229
- http://securityreason.com/securityalert/3127
- http://secweb.se/en/advisories/lighttpd-fastcgi-remote-vulnerability/
- http://trac.lighttpd.net/trac/changeset/1986
- http://www.gentoo.org/security/en/glsa/glsa-200709-16.xml
- http://www.lighttpd.net/assets/2007/9/9/lighttpd_sa_2007_12.txt
- http://www.novell.com/linux/security/advisories/2007_20_sr.html
- http://www.securityfocus.com/archive/1/479763/100/0/threaded
- http://www.securityfocus.com/bid/25622
- http://www.vupen.com/english/advisories/2007/3110
- https://bugzilla.redhat.com/show_bug.cgi?id=284511
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36526
- https://issues.rpath.com/browse/RPL-1715
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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