We’ll come clean up front: it’s true that these security exploits require local access, and due to that fact, the urgent need to update might be a bit overstated. In this case, though, the excitement is less about the breadth of the vulnerabilities and instead the severity.

If you’re confused, Lenovo published a document on April 18th warning

Source: Hot Hardware – Lenovo Patches Alarming UEFI Exploits Affecting Over 100 Laptops, Update ASAP