{"id":"CVE-2009-4030","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-4030","generatedAt":"2026-10-27T18:47:59.554Z","title":"MySQL 5.1.x before 5.1.41 allows local users to bypass certain privilege checks by calling CREATE TABLE on a MyISAM table with modified (1) DATA DIRECTORY or (2) INDEX DIRECTORY arguments that are originally associated with pathnames without symlinks,…","description":"MySQL 5.1.x before 5.1.41 allows local users to bypass certain privilege checks by calling CREATE TABLE on a MyISAM table with modified (1) DATA DIRECTORY or (2) INDEX DIRECTORY arguments that are originally associated with pathnames without symlinks, and that can point to tables created at a future time at which a pathname is modified to contain a symlink to a subdirectory of the MySQL data home directory, related to incorrect calculation of the mysql_unpacked_real_data_home value.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4098 and CVE-2008-2079.","published":"2009-11-30T17:30:00.000Z","lastModified":"2026-06-16T23:12:52.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":4.4,"severity":"MEDIUM","vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-59"],"affected":["mysql/mysql","oracle/mysql"],"epss":{"score":0.00429,"percentile":0.36931,"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 (0.43%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://bugs.mysql.com/bug.php?id=32167","source":"secalert@redhat.com"},{"url":"http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html","source":"secalert@redhat.com"},{"url":"http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html","source":"secalert@redhat.com"},{"url":"http://lists.mysql.com/commits/89940","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=oss-security&m=125908040022018&w=2","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=oss-security&m=125908080222685&w=2","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/38517","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/38573","source":"secalert@redhat.com"},{"url":"http://support.apple.com/kb/HT4077","source":"secalert@redhat.com"},{"url":"http://ubuntu.com/usn/usn-897-1","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2010/dsa-1997","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/19/3","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/24/6","source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2010-0109.html","source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2010-0110.html","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1397-1","source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2010/1107","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11116","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8156","source":"secalert@redhat.com"},{"url":"http://bugs.mysql.com/bug.php?id=32167","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.mysql.com/commits/89940","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=oss-security&m=125908040022018&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=oss-security&m=125908080222685&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/38517","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/38573","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT4077","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://ubuntu.com/usn/usn-897-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2010/dsa-1997","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/19/3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2009/11/24/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2010-0109.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2010-0110.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1397-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2010/1107","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11116","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8156","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-4030","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."}