{"cve":"CVE-2007-6263","nvd":{"published":"2007-12-06T15:46:00.000","modified":"2026-06-16T22:47:42.700","status":"Modified","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://bugs.gentoo.org/show_bug.cgi?id=199206","http://marc.info/?l=full-disclosure&m=119704348003382&w=2","http://osvdb.org/41191","http://secunia.com/advisories/28697","http://www.gentoo.org/security/en/glsa/glsa-200801-17.xml"],"products":["netkit-ftp:netkit_ftp"],"source":"nvd","synced_at":"2026-10-19T19:49:50.107194424+00:00"},"epss":{"cve":"CVE-2007-6263","score":0.02479,"percentile":0.84572,"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."]}