CVE-2012-4504

CVE-2012-4504 describes a stack-based buffer overflow in the url::get_pac function within libproxy 0.4.x before version 0.4.9. This vulnerability allows remote servers to cause an unspecified, but potentially severe, impact through a large proxy.pac file. With a CVSS score of 10.0, it is considered critical, indicating an easily exploitable network-based attack with no authentication required, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.