{"id":"CVE-2007-2844","aliases":["EUVD-2007-2836","GHSA-rjv2-78g6-p67p"],"status":"published","title":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread...","description":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02863,"percentile":0.86853,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2007-05-24T18:00:00Z","modified":"2026-06-16T22:40:32Z","products":[{"vendor":"php","product":"php"}],"references":[{"url":"http://blog.php-security.org/archives/82-Suhosin-0.9.20-and-crypt-Thread-Safety-Vulnerability.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://secunia.com/advisories/25434","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://osvdb.org/36088","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/34601","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/24109","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-2844"},{"url":"https://github.com/advisories/GHSA-rjv2-78g6-p67p"}],"sources":{"cve":[{"id":"CVE-2007-2844","description":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.","status":"published","published":"2007-05-24T18:00:00Z","modified":"2024-08-07T13:57:53.376Z","updated_at":"2026-11-02T13:32:23.14582Z"}],"euvd":[{"id":"EUVD-2007-2836","description":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.","status":"published","published":"2007-05-24T18:00:00Z","modified":"2024-08-07T13:57:53Z","updated_at":"2026-11-03T01:38:19.624156Z"}],"ghsa":[{"id":"GHSA-rjv2-78g6-p67p","title":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread...","description":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.","status":"published","published":"2022-05-01T18:07:44Z","modified":"2023-01-31T05:04:01Z","updated_at":"2026-11-02T14:48:35.806261Z"}],"nvd":[{"id":"CVE-2007-2844","description":"PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.","status":"published","published":"2007-05-24T18:30:00Z","modified":"2026-06-16T22:40:32.737Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:01:16.479378Z"}]}}