{"id":"CVE-2018-10933","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-10933","generatedAt":"2026-10-28T22:12:40.635Z","title":"A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4.","description":"A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.","published":"2018-10-17T12:29:01.000Z","lastModified":"2026-06-17T01:34:57.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-592","CWE-287"],"affected":["libssh/libssh","canonical/ubuntu linux","debian/debian linux","redhat/enterprise linux","netapp/oncommand unified manager","netapp/oncommand workflow automation","netapp/snapcenter","netapp/storage automation store","oracle/mysql workbench"],"epss":{"score":0.91789,"percentile":0.99815,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2018-10-18","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46307,"kind":"exploit","title":"LibSSH 0.7.6 / 0.8.4 - Unauthorized Access","url":"https://www.exploit-db.com/exploits/46307","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/46307.py","file":"exploits/linux/remote/46307.py","published":"2018-10-20","added":"2019-02-03","updated":"2019-02-03","author":"jas502n","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2018-10933"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":"http://www.exploit-db.com/screenshots/idlt46500/exp.jpg","referenceUrl":"https://github.com/jas502n/CVE-2018-10933/blob/05ee62e7ed7d4cd10e71ea10b28da990e37a24f4/libssh-CVE-2018-10933-jas502n.py"},{"edbId":45638,"kind":"exploit","title":"libSSH - Authentication Bypass","url":"https://www.exploit-db.com/exploits/45638","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/45638.py","file":"exploits/linux/remote/45638.py","published":"2018-10-18","added":"2018-10-19","updated":"2018-10-19","author":"Dayanç Soyadlı","type":"remote","platform":"linux","port":null,"verified":false,"codes":["CVE-2018-10933"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/blacknbunny/libSSH-Authentication-Bypass/blob/5dc55fbf5518f2e11503f08fa84a3640e60c7ec9/libsshauthbypass.py"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 91.8%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/105677","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933","tags":["Issue Tracking","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20190118-0002/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/3795-1/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/3795-2/","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2018/dsa-4322","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.exploit-db.com/exploits/45638/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://www.libssh.org/security/advisories/CVE-2018-10933.txt","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html","tags":["Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/105677","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190118-0002/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3795-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3795-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4322","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45638/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.libssh.org/security/advisories/CVE-2018-10933.txt","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-10933","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}