CVE-2007-1584

CVE-2007-1584 describes a buffer underflow vulnerability in the header function of PHP 5.2.0. This flaw allows remote attackers to execute arbitrary code by supplying an all-whitespace string, leading to '\0' character writes in memory. With a CVSS score of 6.8, this vulnerability is moderately severe, requiring medium attack complexity but potentially leading to partial confidentiality, integrity, and availability compromise. While not listed on KEV, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.