Over three weeks ago, Microsoft released a bulletin with a code MS08-001 and it ranked an IGMP flaw as “Critical” for Windows Vista, Windows Small Business Server, Windows Home Server, and Windows XP with Service Pack 2.

Today, various tech sites including Computerworld posted an article that the bug was highly exploitable even though Microsoft said that “there are a number of factors that make exploitation of this issue difficult and unlikely in real-world conditions.”

The flaw also exists on Windows Server 2003 but it has a lower security vulnerability rating compared to the other Windows operating systems.

Antivirus developer Symantec said, “This is especially critical on Vista, due to its enhanced kernel security mechanisms.

Source: COMPUTERWORLD