{"cve":"CVE-2007-4727","nvd":{"published":"2007-09-12T19:17:00.000","modified":"2026-06-16T22:44:39.827","status":"Modified","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.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://fedoranews.org/updates/FEDORA-2007-213.shtml","http://secunia.com/advisories/26732","http://secunia.com/advisories/26794","http://secunia.com/advisories/26824","http://secunia.com/advisories/26997"],"products":["lighttpd:lighttpd"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-4727","score":0.12895,"percentile":0.96307,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}