Security researchers at eEye Digital Security have discovered a serious flaw in Symantec Corp.'s enterprise anti-virus software that could be used by hackers to create a self-replicating "worm" attack against Symantec users.

Because Symantec has not yet confirmed the existence of the problem, much less patched it, eEye is offering few details on the vulnerability, which was first disclosed late Wednesday.

"This is definitely a wormable flaw," said Mike Puterbaugh, eEye's vice president of marketing. "It does allow you to take remote control of the system."

Symantec is evaluating eEye's claims and "if necessary, will provide a prompt response and solution," said a Symantec spokesman.

eEye chief hacking officer Marc Maiffret believes that it will take Symantec a "month or two" to patch the problem. "The vulnerability is pretty straightforward for them to identify within their code," he said.

Version 10 and greater of Symantec's enterprise anti-virus software is affected by the flaw, but the company's consumer products do not have the bug, Maiffret said.

This is not the first flaw to be reported in Symantec's security products, which have increasingly come under the scrutiny of hackers and security researchers over the past year. Last December, researcher Alex Wheeler discovered a flaw in Symantec's Antivirus Library that could allow remote attackers to gain control of systems that used Symantec's products. And in October a critical flaw was found in the company's Scan Engine software.