{"cve":"CVE-2013-4545","nvd":{"published":"2013-11-23T11:55:04.740","modified":"2026-06-16T23:57:25.540","status":"Modified","description":"cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://curl.haxx.se/docs/adv_20131115.html","http://lists.opensuse.org/opensuse-updates/2013-12/msg00047.html","http://lists.opensuse.org/opensuse-updates/2013-12/msg00053.html","http://www.debian.org/security/2013/dsa-2798","http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html"],"products":["haxx:curl","haxx:libcurl"],"source":"nvd","synced_at":"2026-10-19T20:30:15.895642412+00:00"},"epss":{"cve":"CVE-2013-4545","score":0.02969,"percentile":0.87241,"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."]}