{"cve":"CVE-2015-7687","nvd":{"published":"2017-10-16T18:29:00.500","modified":"2026-06-17T00:32:58.293","status":"Modified","description":"Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-416"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html","http://www.openwall.com/lists/oss-security/2015/10/03/1","http://www.securityfocus.com/bid/76975","https://bugzilla.redhat.com/show_bug.cgi?id=1268793"],"products":["fedoraproject:fedora","openbsd:opensmtpd"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2015-7687","score":0.04076,"percentile":0.90699,"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."]}