{"cve":"CVE-2017-18594","nvd":{"published":"2019-08-29T00:15:10.467","modified":"2026-06-17T01:13:09.730","status":"Modified","description":"nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH connection fails, as demonstrated by a leading \\n character to ssh-brute.nse or ssh-auth-methods.nse.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-415"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00073.html","http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00075.html","https://github.com/AMatchandaHaystack/Research/blob/master/Nmap%26libsshDF","https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad","https://github.com/nmap/nmap/issues/1077"],"products":["nmap:nmap"],"source":"nvd","synced_at":"2026-10-19T20:58:39.700375520+00:00"},"epss":{"cve":"CVE-2017-18594","score":0.03164,"percentile":0.88001,"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."]}