A common thread with these applications is the potential for a buffer overflow, which in turn could allow an attacker to gain access to users' systems remotely, said Mike Puterbaugh, eEye's senior director of product marketing.
eEye, which issued an announcement about the problem late last week, noted that systems at risk include those running Windows XP with Service Pack 0 or 1 and Windows 2000. The security specialist noted that it is still conducting reviews of the flaw and could find that other versions of the operating system are affected.
Microsoft is unaware of any attacks involving the reported vulnerability or any customers who have been affected, a company representative said.
The vulnerability is only the latest IE security flaw researchers have discovered since Microsoft, Puterbaugh said. Other flaws reported in the past few weeks range from a vulnerability with to an IE flaw involving the .
"I wouldn't be surprised to see Microsoft release another cumulative update for IE in the near future," Puterbaugh said.
While eEye has provided Microsoft details on the vulnerability it found, the security researcher does not provide the public with such details until after a vendor has developed a relevant patch or issued an advisory.
"Microsoft is aggressively investigating these reports," the software giant's representative said. "Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers."
Currently, eEye is readying 12 vulnerability advisories for publication after patches or workarounds are released by vendors. Of these, nine are related to Microsoft.