Vulnerability is emotional risk,  exposure, uncertainty.   It is, according to Brene Brown, our most accurate measurement of courage.
Shame focuses on individual, guilt on behaviour.   Shame drives 2 scripts – “you’re not good enough”, and “who do you think you are?”.  Shame correlates with addiction, depression, violence, aggression, bullying,  suicide, eating disorders.  Guilt however is inversely related.  Guilt is uncomfortable but adaptive.  Yet our society is terrified by it.
From Ted.com