There were11.5% more internet security vulnerabilities disclosed this year compared to last year according to Cisco's Annual Security Report for 2008.
The increase highlights the successful work being done by suppliers in identifying and eliminating vulnerabilities.
Cisco said 80% of vulnerability alerts are coordinated with suppliers of the affected products so that they can release patches or updates at the time of disclosure.
"While the overall number of disclosed vulnerabilities is rising, the number of zero-day vulnerabilities - for which there is no patch available when exploit code is made public or discovered in the wild - in products such as major operating systems, seems to be declining," said the report.
New technologies are being targeted by criminals as businesses adopt them. The networking equipment supplier also revealed that vulnerabilities in virtualisation products tripled to 103 in 2008 from 35 in 2007, as the take up of the technology increased.
The problem of unwanted and often malware ridden e-mails is not going away as about 200 billion messages sent by e-mail last year were spam, according to the study. This accounts for 90% of total e-mails sent.
Overview of the report >>