cve 2026 45491

CVE-2026-45491 is a .NET tampering vulnerability listed in the Microsoft Security Update Guide. The public advisory confirms the vulnerability class and vendor acknowledgement but leaves exploit mechanics largely undisclosed. This tampering bug affects trust boundaries that Windows developers, build engineers, and administrators rely on. While not necessarily wormable remote code execution, it requires attention from those managing .NET environments and Windows security. Discussions on WindowsForum highlight the importance of prioritizing this patch despite sparse details, as it impacts trust boundaries in enterprise IT settings.