Attackers are making the rounds and exploiting a critical security flaw in Adobe Reader 9 and Acrobat 9.
Earlier versions of the PDF-related software are also affected by the critical security flaw, which could cause the applications to crash and potentially let an attacker gain control of a person's computer, Adobe Systems warned Thursday.
Reports also surfaced that attackers have developed an exploit and are taking advantage of the flaw, the company said.
Adobe has yet to develop an update to address the vulnerability but noted it expects to have one ready for Adobe Reader 9 and Acrobat 9 by March 11. After that, the company expects to launch updates for the earlier versions of the software going back to Adobe Reader 7 and Acrobat 7.
Until then, Adobe advises, people should update their virus definitions and exercise caution when opening documents from unknown sources.