{"id":"CVE-2009-3558","aliases":["EUVD-2009-3539","GHSA-mjxv-j6j2-hpmv"],"status":"published","title":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows...","description":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02081,"percentile":0.81651,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2009-11-23T17:00:00Z","modified":"2026-06-16T23:11:51Z","products":[{"vendor":"php","product":"php"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2009/11/20/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"http://securityreason.com/securityalert/6600","tags":["third-party-advisory","x_refsource_SREASON","x_transferred","Exploit"]},{"url":"http://www.php.net/releases/5_2_12.php","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://news.php.net/php.announce/79","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://svn.php.net/viewvc?view=revision\u0026revision=288943","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:285","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"http://secunia.com/advisories/37821","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/posix/posix.c?view=log","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred"]},{"url":"http://www.php.net/ChangeLog-5.php","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://support.apple.com/kb/HT4077","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2009/11/20/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"http://www.php.net/releases/5_3_1.php","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2009/3593","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2009/11/20/5","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/37412","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/ext/posix/posix.c?view=log","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:302","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:303","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3558"},{"url":"https://github.com/advisories/GHSA-mjxv-j6j2-hpmv"}],"sources":{"cve":[{"id":"CVE-2009-3558","description":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.","status":"published","published":"2009-11-23T17:00:00Z","modified":"2024-08-07T06:31:10.377Z","updated_at":"2026-11-02T14:33:23.749891Z"}],"euvd":[{"id":"EUVD-2009-3539","description":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.","status":"published","published":"2009-11-23T17:00:00Z","modified":"2024-08-07T06:31:10Z","updated_at":"2026-11-03T01:39:13.262818Z"}],"ghsa":[{"id":"GHSA-mjxv-j6j2-hpmv","title":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows...","description":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.","status":"published","published":"2022-05-02T03:46:23Z","modified":"2023-01-31T05:07:56Z","updated_at":"2026-11-02T14:49:18.423365Z"}],"nvd":[{"id":"CVE-2009-3558","description":"The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.","status":"published","published":"2009-11-23T17:30:00.53Z","modified":"2026-06-16T23:11:51.697Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:01:37.939838Z"}]}}