cve-2026-34336

CVE-2026-34336 is a Windows DWM Core Library information disclosure vulnerability addressed in Microsoft's May 12, 2026 security update. The flaw is local and resides in the desktop composition stack, a central user-session component. While not a remote-code-execution vulnerability, information disclosure flaws like this can be critical in exploit chains, where a memory leak may enable further compromise. Discussions on WindowsForum.com cover the technical details, risk assessment, and patching guidance for this CVE, emphasizing that even non-RCE vulnerabilities require prompt attention to maintain system security.