Understanding Vault Error 27548: fatal exception

Vault 5.3, 5.4, 5.5, 6.0, 6.1
What does Vault Error 27548: fatal exception mean?

When you see Vault ERROR 27548:  fatal exception in the log, as below:
1) 12:24:11 ERROR 27548: fatal exception, build [5.0M1p1534], code [0xC0000005], flags [0x00000000], address
This error is associated with some hardware problems that is causing index issues.
What may be happening is that the document record could not be retrieved properly which causes the profile map to remain uninitialized and when it is later used, it would cause an access violation. The document record might not be readable if the file was in used, corrupted, missing, etc.
UPDATED:  August 23, 2017