We shouldn't minimize how dangerous WMF was. A malicious threat like this, which could release its payload without a user installing a file but merely by viewing a graphic, has the potential for widespread harm. WMF didn't propagate as quickly as some expected but the rapid progression from vulnerability to exploit only reaffirms the importance of staying on top of new threats. Response time is critical to effective network security.
— Alan Shimel
DangerousItsMalicious