Hi, My W-2 form is missing my SSN. This may be because I have not uodated it on our Company Intranet. Now, Is this a problem for filing my Tax returns? Do I have to get the corrected W-2 from my Employer. Please advise.

Yes, I would get a correct W-2. If your employer withheld taxes on your wages but did not report those taxes to the IRS for your SSN, then when you file using your SSN, the IRS will not allow you to treat those taxes as having been paid on your behalf.