{"id":"CVE-2018-9853","aliases":["EUVD-2018-21447","GHSA-36w9-v5c5-w4rg"],"status":"published","title":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of...","description":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of the freesshd.exe process by leveraging the ability to login to an unprivileged account on the server.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01287,"percentile":0.70363,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2018-07-10T14:00:00Z","modified":"2026-06-17T02:07:17Z","products":[{"vendor":"freesshd","product":"freesshd"}],"references":[{"url":"https://medium.com/%40TheWindowsTwin/vulnerability-in-freesshd-5a0abc147d7a","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9853"},{"url":"https://medium.com/@TheWindowsTwin/vulnerability-in-freesshd-5a0abc147d7a"},{"url":"https://github.com/advisories/GHSA-36w9-v5c5-w4rg"}],"sources":{"cve":[{"id":"CVE-2018-9853","description":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of the freesshd.exe process by leveraging the ability to login to an unprivileged account on the server.","status":"published","published":"2018-07-10T14:00:00Z","modified":"2024-08-05T07:24:56.221Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-21447","description":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of the freesshd.exe process by leveraging the ability to login to an unprivileged account on the server.","status":"published","published":"2018-07-10T14:00:00Z","modified":"2024-08-05T07:24:56Z","updated_at":"2026-11-03T02:40:00.040327Z"}],"ghsa":[{"id":"GHSA-36w9-v5c5-w4rg","title":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of...","description":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of the freesshd.exe process by leveraging the ability to login to an unprivileged account on the server.","status":"published","published":"2022-05-13T01:53:57Z","modified":"2023-02-02T05:02:25Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:51:26.066709Z"}],"nvd":[{"id":"CVE-2018-9853","description":"Insecure access control in freeSSHd version 1.3.1 allows attackers to obtain the privileges of the freesshd.exe process by leveraging the ability to login to an unprivileged account on the server.","status":"published","published":"2018-07-10T14:29:00.527Z","modified":"2026-06-17T02:07:17.87Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:04:32.929986Z"}]}}