Symantec is recommending that users of its pcAnywhere software disable the product following the theft of source code from the US computer security firm.
"At this time, Symantec recommends disabling the product until Symantec releases a final set of software updates that resolve currently known vulnerability risks," the Mountain View, California-based company said.
Symantec, in a technical white paper posted on the firm's website, said the vulnerability to pcAnywhere, which allows for remote PC to PC connections, is the result of a 2006 theft of source code by hackers.
"We believe that source code for the 2006-era versions of the following products was exposed: Norton Antivirus Corporate Edition; Norton Internet Security; Norton SystemWorks (Norton Utilities and Norton GoBack); and pcAnywhere," Symantec said.
The only identified threat, however, is to pcAnywhere and not any of the Norton products.
"With this incident pcAnywhere customers have increased risk," Symantec said.
"Malicious users with access to the source code have an increased ability to identify vulnerabilities and build new exploits."
Symantec's recommendation follows a threat this month by hackers in India to publish the stolen source code.