: Adobe often triggers a silent upgrade for users. If a custom environment requires 32-bit (e.g., for specific 3rd-party plugins), admins must "patch" the installation behavior by disabling the update service or using the Acrobat Customization Wizard to prevent the forced x64 migration. Critical Security Context
Mitigates CVE-2026-34621 , an "Improperly Controlled Modification of Object Prototype Attributes" bug that enabled attackers to steal local files and execute arbitrary code. patched adobe reader x64 fixes v3001 install