Mozilla Firefox HTML marquee tag denial of service

firefox-marquee-dos (26898) The risk level is classified as MediumMedium Risk


Mozilla Firefox is vulnerable to a denial of service caused by improper handling of specially-crafted HTML marquee tags. A remote attacker could exploit this vulnerability using a malicious Web page to consume all available CPU resources on a victim's system, once the page is loaded.

Note: It has also been reported that this vulnerability affects other Web browsers, including Opera, Flock and Internet Explorer.


Denial of Service


No remedy available as of September 1, 2014.


Platforms Affected:

  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP1
  • Mozilla Firefox 1.0.8
  • Mozilla Firefox
  • Mozilla Firefox
  • Mozilla Firefox
  • Opera Opera Browser


May 30, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page