http://forumdzjegkm6ey6ngexwpv5u3f3sav5wnrwqmatcb6c6mhxmkhsczid.onion/topic/details/new-no-click-critical-vulnerability-in-microsoft-windows-cve-2025-21298/41
During this vulnerability window, if we can trigger a failure in UtReadOlePresStmHeader, the cleanup routine will attempt to free the same memory location again. This second free operation corrupts the heap memory management structures. Once the heap is corrupted, the system’s memory management is compromised, allowing an attacker to potentially take control of the process.