{"cve":"CVE-2018-7750","nvd":{"published":"2018-03-13T18:29:00.303","modified":"2026-06-17T02:03:38.710","status":"Modified","description":"transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287"],"references":["http://www.securityfocus.com/bid/103713","https://access.redhat.com/errata/RHSA-2018:0591","https://access.redhat.com/errata/RHSA-2018:0646","https://access.redhat.com/errata/RHSA-2018:1124","https://access.redhat.com/errata/RHSA-2018:1125"],"products":["debian:debian_linux","paramiko:paramiko","redhat:ansible_engine","redhat:cloudforms","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","redhat:virtualization"],"source":"nvd","synced_at":"2026-10-19T20:48:50.842038930+00:00"},"epss":{"cve":"CVE-2018-7750","score":0.27105,"percentile":0.9805,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-232r-66cg-79px","url":"https://osv.dev/vulnerability/GHSA-232r-66cg-79px","summary":"Paramiko not properly checking authentication before processing other requests","modified":"2026-06-09T13:15:16.170803623Z","packages":[{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=2.0.0 <2.0.8"],"fixed":["2.0.8"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=2.1.0 <2.1.5"],"fixed":["2.1.5"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=2.2.0 <2.2.3"],"fixed":["2.2.3"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=2.3.0 <2.3.2"],"fixed":["2.3.2"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=2.4.0 <2.4.1"],"fixed":["2.4.1"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":[">=1.18.0 <1.18.5"],"fixed":["1.18.5"]},{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":["<1.17.6"],"fixed":["1.17.6"]}]},{"id":"PYSEC-2018-19","url":"https://osv.dev/vulnerability/PYSEC-2018-19","summary":"","modified":"2026-06-08T11:15:07.478696416Z","packages":[{"ecosystem":"PyPI","name":"paramiko","purl":"pkg:pypi/paramiko","ranges":["<1.17.6",">=1.18.0 <1.18.5",">=2.0.0 <2.0.8",">=2.1.0 <2.1.5",">=2.2.0 <2.2.3",">=2.3.0 <2.3.2"],"fixed":["1.17.6","1.18.5","2.0.8","2.1.5","2.2.3","2.3.2"]}]}],"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."]}