What levels of severity of incidents do you know?

I know the following commonly accepted incident severity levels:

• Blocker: Completely blocks further work or testing of a key functionality, has no workaround.
• Critical: Disrupts the main functionality of the system or leads to serious data/resource loss, but has a temporary workaround or affects part of the functionality.
• Major: Disrupts an important part of the functionality, leads to incorrect results or user inconvenience, but does not block work entirely.
• Minor: Slightly affects functionality or usability, easily bypassed, does not cause critical problems.
• Trivial/Cosmetic: Minor errors related to appearance or typography, do not affect functionality.

When establishing the severity level, the impact of the defect on the user, business processes, and system operability is considered.