{"id":"CVE-2016-6210","state":"PUBLISHED","title":"sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remo","description":"sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.","publishedAt":"2017-02-13T00:00:00.000Z","updatedAt":"2026-05-29T20:17:40.496Z","severity":{"score":5.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://access.redhat.com/errata/RHSA-2017:2563","http://www.securitytracker.com/id/1036319","http://seclists.org/fulldisclosure/2016/Jul/51","http://www.debian.org/security/2016/dsa-3626","https://www.exploit-db.com/exploits/40136/","https://www.exploit-db.com/exploits/40113/","https://www.openssh.com/txt/release-7.3","https://security.gentoo.org/glsa/201612-18","https://access.redhat.com/errata/RHSA-2017:2029","http://www.securityfocus.com/bid/91812","https://security.netapp.com/advisory/ntap-20190206-0001/","https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T19:42:50.421Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2016/6xxx/CVE-2016-6210.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2016-6210","state":"PUBLISHED","datePublished":"2017-02-13T00:00:00.000Z","dateUpdated":"2026-05-29T20:17:40.496Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2016-07-13T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2017:2563","name":"RHSA-2017:2563","tags":["vendor-advisory"]},{"url":"http://www.securitytracker.com/id/1036319","name":"1036319","tags":["vdb-entry"]},{"url":"http://seclists.org/fulldisclosure/2016/Jul/51","name":"20160714 opensshd - 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