CVE-2019-1365

CVE-2019-1365 is a critical elevation of privilege vulnerability in Microsoft IIS Server, affecting various Windows operating systems including Windows 10, Windows Server 2019, and earlier versions. It stems from improper buffer length checks, allowing an unprivileged user to execute code with NT AUTHORITY\system privileges and escape sandboxes. With a CVSS score of 9.9, this vulnerability is easily exploitable over the network with low privileges, leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) is currently available, and it's not listed in CISA's KEV catalog, its high severity and media coverage indicate significant potential risk.