This signature fires upon detecting a specific attempt to exploit a vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey. This vulnerability is documented as CVE-2012-4186. Successful exploitation might allow remote attackers to execute arbitrary code. This signature is obsoleted by 1561-1 on platforms supporting string-xl-tcp engine.
LEGAL DISCLAIMER THE INFORMATION ON THIS PAGE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION CONTAINED HEREIN, OR MATERIALS LINKED FROM THE DOCUMENT, IS AT YOUR OWN RISK. INFORMATION IN THIS DOCUMENT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.