by Andy McCue

Hackers could exploit content checking and antivirus products...
The body responsible for protecting the UK's critical national infrastructure against electronic attack has issued an urgent alert to users about eight serious new security flaws affecting hundreds of email gateway products.

The vulnerabilities can be exploited with "malformed" subjects using multiple occurrences of fields, non-standard presence of whitespace and non-standard quoting to evade content checking functionality. This could allow malicious code through content filtering and antivirus software.

more at Silicon.com