{"cve":"CVE-2009-2417","nvd":{"published":"2009-08-14T15:16:27.390","modified":"2026-06-16T23:09:24.550","status":"Modified","description":"lib/ssluse.c in cURL and libcurl 7.4 through 7.19.5, when OpenSSL is used, does not properly handle a '\\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://curl.haxx.se/CVE-2009-2417/curl-7.10.6-CVE-2009-2417.patch","http://curl.haxx.se/CVE-2009-2417/curl-7.11.0-CVE-2009-2417.patch","http://curl.haxx.se/CVE-2009-2417/curl-7.12.1-CVE-2009-2417.patch","http://curl.haxx.se/CVE-2009-2417/curl-7.15.1-CVE-2009-2417.patch","http://curl.haxx.se/CVE-2009-2417/curl-7.15.5-CVE-2009-2417.patch"],"products":["curl:libcurl","libcurl:libcurl"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-2417","score":0.03461,"percentile":0.89045,"date":"2026-11-01"},"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."]}