Windows Office CVE-2026-21509 kill-bit manage

Post-exploitation module for CVE-2026-21509 Office OLE/COM kill-bit bypass around Shell.Explorer.1 / CLSID EAB22AC3-30C1-11CF-A7EB-0000C05BAE0B. Checks registry Compatibility Flags=0x400, applies/removes the temporary kill-bit mitigation, checks related KBs, or writes a dummy RTF probe. Requires ...