{"id":"CVE-2024-39894","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-39894","generatedAt":"2026-10-28T03:29:21.674Z","title":"OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error.","description":"OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.","published":"2024-07-02T18:15:04.000Z","lastModified":"2026-06-17T07:42:59.000Z","status":"Deferred","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-367"],"affected":[],"epss":{"score":0.01634,"percentile":0.76125,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2024/07/03/6","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/23/4","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/23/6","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/28/3","source":"cve@mitre.org"},{"url":"https://crzphil.github.io/posts/ssh-obfuscation-bypass/","source":"cve@mitre.org"},{"url":"https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html","source":"cve@mitre.org"},{"url":"https://news.ycombinator.com/item?id=41508530","source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20240712-0004/","source":"cve@mitre.org"},{"url":"https://www.openssh.com/txt/release-9.8","source":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2024/07/02/1","source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2024/Sep/33","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/03/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/23/4","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/23/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2024/07/28/3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20240712-0004/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.freebsd.org/security/advisories/FreeBSD-SA-25:01.openssh.asc","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openssh.com/txt/release-9.8","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openwall.com/lists/oss-security/2024/07/02/1","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-39894","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."}