{"id":"CVE-2009-4269","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-4269","generatedAt":"2026-10-27T19:39:23.412Z","title":"The password hash generation algorithm in the BUILTIN authentication functionality for Apache Derby before 10.6.1.0 performs a transformation that reduces the size of the set of inputs to SHA-1, which produces a small search space that makes it easier…","description":"The password hash generation algorithm in the BUILTIN authentication functionality for Apache Derby before 10.6.1.0 performs a transformation that reduces the size of the set of inputs to SHA-1, which produces a small search space that makes it easier for local and possibly remote attackers to crack passwords by generating hash collisions, related to password substitution.","published":"2010-08-16T20:00:01.000Z","lastModified":"2026-06-16T23:13:22.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":2.1,"severity":"LOW","vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N"},"cwe":["CWE-310"],"affected":["apache/derby"],"epss":{"score":0.01426,"percentile":0.72769,"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":"low","text":"Lower severity and a low EPSS score (1.43%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://blogs.sun.com/kah/entry/derby_10_6_1_has","source":"secalert@redhat.com"},{"url":"http://db.apache.org/derby/releases/release-10.6.1.0.cgi#Fix+for+Security+Bug+CVE-2009-4269","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=apache-db-general&m=127428514905504&w=1","source":"secalert@redhat.com"},{"url":"http://marcellmajor.com/derbyhash.html","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/42948","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/42970","source":"secalert@redhat.com"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/42637","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1024977","source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2011/0149","source":"secalert@redhat.com"},{"url":"https://issues.apache.org/jira/browse/DERBY-4483","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://blogs.sun.com/kah/entry/derby_10_6_1_has","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://db.apache.org/derby/releases/release-10.6.1.0.cgi#Fix+for+Security+Bug+CVE-2009-4269","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=apache-db-general&m=127428514905504&w=1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marcellmajor.com/derbyhash.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/42948","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/42970","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/42637","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1024977","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2011/0149","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.apache.org/jira/browse/DERBY-4483","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-4269","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."}