CVE-2011-1886

CVE-2011-1886 is an information disclosure vulnerability affecting Microsoft Windows XP SP3. It stems from improper argument validation in the win32k.sys kernel-mode driver, allowing a local attacker to read arbitrary kernel memory via a crafted application that triggers a NULL pointer dereference. The vulnerability has a low CVSS score of 2.1, indicating a local attack vector with low complexity and a potential impact of only partial confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.